https://jenseriklundsnee.com/images daily 0.75 2023-07-08 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1501990361500-75B2COVW593AZA84LCOD/IMG_9507+2.jpg Images - Commuting to the field https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1501990361500-75B2COVW593AZA84LCOD/IMG_9507+2.jpg Images - Commuting to the field https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1513270704707-AYJ8FFWHX1RSSAITANFF/accidental_art.png Images - Accidental Art https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1688852424906-845NFZZ3W4GF3EKWHTD7/IMG_0192.jpeg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653155571543-UXOU8E9CWC2ER3LEWBIN/IMG_1080.jpeg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653059450226-I6VK5W3JZEYQCUZ0MJEH/Lund+Snee+fractures.jpeg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653155580113-H7TMOT7HXPKTFG3O9ESD/IMG_1108.jpeg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653155817340-P1ESFXEU0P44RRY7N150/IMG_0345.jpeg Images - Serving as a field assistant for Theresa Schwartz (USGS, pictured) https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653059450240-TBMHUZZS339J9X348FI4/Lund+Snee+Northern+Snake+Range+Nevada.jpeg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653155586079-2H7SE6Z1W2VTAC6DV9GM/IMG_0330.jpeg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1503459561992-U39SDJB2QOEDBAKXV16F/Elsworth_Lund_Snee.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653155304557-Z3Y6B6SRNJWUT6QW080V/IMG_0347.jpeg Images Photographer: Theresa M. Schwartz (USGS) https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188348707-KLBAL3FFWW6ZKSSQDSMJ/IMG_0223.jpg Images - Redbeds above the basal unconformity Redbed conglomerates sitting just above the unconformity at the top of the Paleozoic succession, north of Cedar Ridge, Huntington Valley, Nevada. These rocks lack Cenozoic volcanic detritus and their youngest zircon are Triassic in age. The depositional age is probably late Cretaceous or early Cenozoic, but it's uncertain. This is the record of what was sitting at the earth's surface following Mesozoic, Sevier-era shortening. It's overlain by the Eocene Elko Formation. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188347308-SGLITVVTK5TJDZF4IA7A/IMG_0219.jpg Images - Thunderstorm over the Ruby Mountains Standing at the top of Cedar Ridge looking east across Huntington Valley toward the Ruby Mountains. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188355990-US7V1CMR3G7OC5JT2S4E/IMG_6713.jpg Images - Tuff of Dixie Creek, Huntington Valley, Nevada https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1541108473373-W3P4BQ5KEPGCISJN5H7G/image-asset.jpeg Images - Jens-Erik Lund Snee, U.S. Geological Survey Earthquake Science Center Seminar talk https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188358595-V6ZMKD3CZCWV0J447BZ0/IMG_6712_2.jpg Images - Huntington Valley, Nevada https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188350241-8E89E4WHYJOTL230R8IZ/DSCN1837.jpg Images - South Island, New Zealand https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188344806-IXIPDVZS36GNZAKSDOG0/IMG_0248.jpg Images - Piñon Range, Nevada https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188352040-PO5LHX8121JIRQSWYKJ4/DSCN1812.jpg Images - Smithy Creek fault, South Island, New Zealand See Lund Snee et al. (2014) for a detailed study of this fault zone and its implications for the Alpine Fault interface between the Australian and New Zealand plates. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468213529152-XM4F9Q4UCZESOT0RD5H1/IMG_3022.jpg Images - Mount Cook sunrise https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188353081-WNU5RFXN7RRV4DK0QB02/IMG_1482.jpg Images - University of Otago, New Zealand https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188358346-RV83U9Q6QFST0HIDVLLI/IMG_1036.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188359977-IOC26FYFBR7IZO5BVV3K/IMG_0499.jpg Images - Southern Alps, South Island, New Zealand Looking east from sea level, across the Alpine Fault, to the Southern Alps. The tall peak toward the right side of the image is Aoraki (Mount Cook), the highest point in New Zealand. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188362790-TAMF4APZF3AFQDN2BAM6/IMG_0485.jpg Images - Okarito, New Zealand https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468213115837-32H67I1K1IKBGPAE8ZJF/IMG_6548.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468188362508-ALLGX1IK06Q2321LPAD0/IMG_6553.jpg Images - Fiordland, New Zealand https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209654877-XB1DJFWON76KFZCJTKNC/IMG_0371.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209654677-PKUVFX6D3JLXV7GKPE0T/IMG_0334.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209655650-CGNP79BL6PYOJI5YZTEL/IMG_0328.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1503459585678-ND5ZAO2QIDD077Z1U9ET/Furnace.JPG Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209662285-5MFIO4AQIRSJ9ZGE6HY2/IMG_6080.jpg Images - NZ Deep Fault Drilling Project https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209665663-15B223PVGSV03C9SOKXJ/IMG_6091.jpg Images - NZ Deep Fault Drilling Project https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209656625-XUSIKPF6ZN7KZC3WFCSU/IMG_6092.jpg Images - New Zealand flag flying above the DFDP-1 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209663445-8NTZ7E7654VAMN1XC74Q/IMG_7026.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209665347-CBTMEKAQRX0BMD3BU4QG/IMG_7117.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209667061-JC3IF008FANMFFFTFG53/IMG_7102.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1653059308964-9P673SSNCARNPRPO6S9G/image-asset.jpeg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209668620-REQBUWKDG1HQ8YT6033X/IMG_7308.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209668896-SHFM9CS9C95QRK8SOZGZ/IMG_7305.jpg Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1468209681306-MT4CB0V8VO5SKXJ1CZTM/IMG_5873.jpg Images https://jenseriklundsnee.com/blog daily 0.75 2025-08-08 https://jenseriklundsnee.com/blog/2025/8/8/19mxtwsy7ri50qyeq4uuwynyvq339k monthly 0.5 2025-08-08 https://jenseriklundsnee.com/blog/2023/11/26/new-article-on-stress-inversions monthly 0.5 2023-11-26 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/9c523863-5374-4258-87c9-733dd9c32f8d/Lundstern_et_al_2023_Nodal_Plane_Diversity_results_Fixed_shear.png Blog - New article on stress inversions - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://jenseriklundsnee.com/blog/2022/8/29/my-new-family-name monthly 0.5 2022-09-13 https://jenseriklundsnee.com/blog/2022/3/3/brave-russian-antiwar-protesters monthly 0.5 2022-04-17 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646513119992-XJMNCWVVJSECRO0Q0WOT/yulia-zhivtsova_vert-7abc30d8071a1f6a43a38e416246388062707e99-s1400.jpeg Blog - The bravery of Russian antiwar protesters Original caption: Yulia Zhivtsova sits in Pushkin Square holding Harry Potter books with the colors of the Ukrainian flag. Zhivtsova has been participating in the protests against Russia's invasion of Ukraine. [Article.] Yulia Zhivtsova via NPR https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1652843091407-9QDD9J9FV67YN66AHE8L/russian-protestor-arrested-fined-asterisks-sign.jpeg Blog - The bravery of Russian antiwar protesters Protestor arrested for having sign with only asterisks on it. Epsilon/Getty Images Europe https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646365635817-RT3JYU02XO1VQN4Y0SXB/Russian+antiwar+protesters+5.jpg Blog - The bravery of Russian antiwar protesters Original caption: People gather to stage anti-war protest in Saint-Petersburg, Russia on March 1, 2022. [Article.] Anadolu Agenci via Getty Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646364141924-OPKRCR4XFP9BIMTQA1JA/Siege_of_Leningrad_survivor_Russia_antiwar_arrest.jpg Blog - The bravery of Russian antiwar protesters It took eight Russian police officers to arrest 76-year-old Yelena Osipova, one of the last survivors of the Sieve of Leningrad. According to one article, one of her signs reads, “Soldier, drop your weapon and you will be a true hero!” [Source of still image.] [Video.] Twitter via Fourals https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646360630408-OI52EQ8Z69REPQNPEO1S/Russian+antiwar+protester+children.jpeg Blog - The bravery of Russian antiwar protesters Original caption: Children were detained in Moscow on Tuesday, after trying to leave flowers at Ukraine's embassy. They were carrying signs that read, "No to War." [Article.] Alexandra Arkhipova via NPR https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646360629138-RITVD65G3XWWBSJHQ6EP/russia-children-arrested-protest_vert-03a5b02bfd76f655077ee741b1818f383b4e10e4-s1600-c85.jpeg Blog - The bravery of Russian antiwar protesters Original caption: A video posted to Facebook and other social media sites by Alexandra Arkhipova shows a young girl weeping as she is held in a cell. The girl, her mother and other children were arrested as they tried to bring flowers to the Ukrainian embassy in Moscow, Arkhipova said. [Article.] Alexandra Arkhipova via NPR https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646363787574-2XJROPAVQCEGQOX3NVES/Russian_antiwar_hashtags_map.png Blog - The bravery of Russian antiwar protesters [Article.] https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646367267587-SC7J3ICJYSCKGWBFM2X7/original-3.jpg Blog - The bravery of Russian antiwar protesters People attend an anti-war protest in St. Petersburg on February 24, 2022. [Article.] Anton Vaganov/Reuters https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646360629677-J7HY8MCWI9IHHL7I56J5/Russian+antiwar+protesters+3.jpg Blog - The bravery of Russian antiwar protesters Original caption: Police officers detain demonstrators during an anti-war protest, after Russian President Vladimir Putin authorised a 'military operation' in eastern Ukraine, in Saint Petersburg, Russia [Article.] Anton Vaganov/Reuters https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646360629832-LLIDWJ286YXO3DFWHB4I/Russian+antiwar+protesters+2.jpg Blog - The bravery of Russian antiwar protesters Original caption: ‘No to war’ reads this protester’s mask. [Article.] Niko Vorobyov/Al Jazeera https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366215973-4WMEX7P6EAQSA2ZFSRU6/9be897ad-bd2a-48e9-a715-4b41db012647-Russia_Ukraine_Protests_18.jpg Blog - The bravery of Russian antiwar protesters Original caption: People march to protest against Russia's invasion of Ukraine in central Saint Petersburg on March 1, 2022. [Article.] OLGA MALTSEVA, AFP VIA GETTY IMAGES https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646360630211-RQ9FHUFX5C5MYOAS8CHD/Russian+antiwar+protesters+1.jpg Blog - The bravery of Russian antiwar protesters Original caption: Riot police surrounded the crowds in St Petersburg and made several arrests. [Article.] Niko Vorobyov/Al Jazeera https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646360629290-PQD5L3N8JLFIPWFB1R5E/Russian+antiwar+protesters+4.jpg Blog - The bravery of Russian antiwar protesters From the article: A feeling of anger, shame and disbelief seems to have lit a fuse under Russia’s usually passive civil society. Original caption: A protest in Moscow against the Russian military actions in Ukraine Maxim Shipenkov/EPA https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646367267909-KWUFNJOTUF77M1DYWAV9/original-4.jpg Blog - The bravery of Russian antiwar protesters People attend an anti-war protest in St. Petersburg on February 24, 2022. The banners read: "I'm ashamed to be Russian" and "No war." [Article.] Anton Vaganov/Reuters https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366216504-LYDDY42GWXYXXCLX1VZH/75b0eaa4-6c6d-4cf9-b787-c3fcfcbbb568-Russia_Ukraine_Protests_23.jpg Blog - The bravery of Russian antiwar protesters Original caption: Police officers detain women during a protest against Russia's invasion of Ukraine in central Moscow on March 2, 2022. Jailed Kremlin critic Alexei Navalny on March 2 urged Russians to stage daily protests against Moscow's invasion of Ukraine, saying the country should not be a "nation of frightened cowards" and calling Vladimir Putin "an insane little tsar." [Article.] NATALIA KOLESNIKOVA, AFP VIA GETTY IMAGES https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646365634841-AN3QYUNX1TVFOI95AS1V/Russian+antiwar+protesters+10.jpg Blog - The bravery of Russian antiwar protesters Original caption: Law enforcement officers detain participants in an unauthorized rally against the Russian military operation in Ukraine, in St. Petersburg, Russia, on Wednesday, March 2. [Article.] Valentin Yegorshin/TASS/Sipa USA https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646365634994-83B5I2E4HLNAN3SZYEIJ/Russian+antiwar+protesters+7.jpg Blog - The bravery of Russian antiwar protesters Original caption: A protester is dragged away by Omon paramilitary members during a demonstration in Moscow on Sunday. [Article.] Getty Images https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646365635485-9SDABX6D96M4AYH5VKTK/Russian+antiwar+protesters+6.jpg Blog - The bravery of Russian antiwar protesters Nearly 7,000 people have now been detained in antiwar protests across Russia since Thursday. [Article.] Kommersant Photo Agency/REX https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366217156-A16ALLZ1XYLJVL161SBO/d52ffbd9-7bda-46e2-9127-8015249fab1f-Russia_Ukraine_Protests_20.jpg Blog - The bravery of Russian antiwar protesters Original caption: Police detain demonstrators during an action against Russia's attack on Ukraine in St. Petersburg, Russia, Tuesday, March. 1, 2022. [Article.] DMITRI LOVETSKY, AP https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366217880-KY6QD71LGUGJUU1ZIPC4/44d4f101-ba97-43b8-b770-42506506280c-Russia_Ukraine_Protests_11.jpg Blog - The bravery of Russian antiwar protesters Original caption: Demonstrators shout slogans in St. Petersburg, Russia, Friday, Feb. 25, 2022. Shocked Russians turned out by the thousands to decry their country's invasion of Ukraine as emotional calls for protests grew on social media. [Article.] DMITRI LOVETSKY, AP https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366791222-ZQ8BFX3TPXG9AZHH2VCF/1b6c5fb3-4d57-4e82-af01-8991cb1af770-Russia_Ukraine_Protests_22.jpg Blog - The bravery of Russian antiwar protesters Police detain a demonstrator during an action against Russia's attack on Ukraine in St. Petersburg, Russia, Wednesday, March 2, 2022. [Article.] DMITRI LOVETSKY, AP https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366217806-ZOAZZL0M8QWQLSNB10TX/2b31460f-f98f-4410-a558-3b4ad0138433-Russia_Ukraine_Protests_19.jpg Blog - The bravery of Russian antiwar protesters Police detain a demonstrator during an action against Russia's attack on Ukraine in St. Petersburg, Russia, Wednesday, March 2, 2022. Protests against the Russian invasion of Ukraine resumed on Wednesday, with people taking to the streets of Moscow and St. Petersburg and other Russian towns despite mass arrests. [Article.] DMITRI LOVETSKY, AP https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366791059-F8K23GTUUD2KSFNRN3EU/2bd7cd37-4021-4c0d-bd1d-0d99f0dcd26a-Russia_Ukraine_Protests_06.jpg Blog - The bravery of Russian antiwar protesters A demonstrator wearing a face mask with an inscription reading "No to war" stands in front of a line of police officers during a protest against Russia's invasion of Ukraine in central Saint Petersburg on Feb. 27, 2022. [Article.] SERGEI MIKHAILICHENKO, AFP VIA GETTY IMAGES https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646366792034-PL0AL5Z5C2Q5GNT80EX3/bc21c794-92b5-44a1-bda4-7e19a2cab3b3-Russia_Ukraine_Protests_24.jpg Blog - The bravery of Russian antiwar protesters Original caption: Men take down a sign with writing reading "No War" which was hanging over Nevsky prospect, the central avenue of St. Petersburg, Russia, Tuesday, March. 1, 2022. [Article.] DMITRI LOVETSKY, AP https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646367267004-G5E57B5LEKQ61R2HXPSJ/original-1.jpg Blog - The bravery of Russian antiwar protesters Original caption: A person carries a banner during an anti-war protest in Moscow on February 24, 2022. The banner reads "No war. Freedom for political prisoners." [Article.] Evgenia Novozhenina/Reuters https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646367267407-EPKWAB4FKNEEQKY35KYU/original-2.jpg Blog - The bravery of Russian antiwar protesters Original caption: A police officer detains a demonstrator with a poster reading "No war" during a protest against Russia's attack on Ukraine, in Moscow, on February 24, 2022. [Article.] Denis Kaminev/AP https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646367266891-ULR6RDUS6MMUG4UECHUO/original.jpg Blog - The bravery of Russian antiwar protesters Demonstrators march with a banner that reads "Ukraine—Peace, Russia—Freedom," in Moscow on February 24, 2022, after Russia's attack on Ukraine. [Article.] Dmitry Serebryakov/AP https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646513119513-KX7BPWCGF2IPU3FL9T9R/gettyimages-1238728018_custom-aaf1f617c80aca10f688f0a72d309a10bbec06c0-s1600-c85.jpeg Blog - The bravery of Russian antiwar protesters Original caption: Police officers in Moscow detain a woman on Feb. 24 during a protest against Russia's invasion of Ukraine. [Article.] Kirill Kudryavstev/AFP via Getty Images and NPR https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1646513383632-4RARXUTRZCP7MLANSUAN/photo_2022-02-24_16-47-59.jpg Blog - The bravery of Russian antiwar protesters Via OVD-News https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1652843311354-WPT389RP290DCLGDV4Z8/000_32629X3.jpeg Blog - The bravery of Russian antiwar protesters Original caption: Police officers detain a woman during a protest against Russian military action in Ukraine, in Manezhnaya Square in central Moscow. [Article.] AFP https://jenseriklundsnee.com/blog/2021/8/10/henningsfwbpp monthly 0.5 2021-08-11 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1628648599259-UENTFM9SVI7KD3XQDVTW/Lund+Snee+FWB+FSP.png Blog - New study tracks changes to stability of faults associated with Fort Worth Basin earthquakes - Make it stand out Figure 2. Map of the Fort Worth Basin showing faults colored by slip potential within the mapped stress field (Figure 2), as well as seismicity. Figure is from Lund Snee (2020), after Hennings et al. (2019). https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1628647856890-84JW0J4936B1UD1FGKC1/Hennings+et+al+2021+Fig+4.jpg Blog - New study tracks changes to stability of faults associated with Fort Worth Basin earthquakes - Make it stand out Figure 5. Histogram showing the total length of fault segments associated (black) and not associated (gray) with earthquakes. Note that non-seismogenic faults much more commonly experienced little or no fluid pressure increase. (It is not surprising that many fault segments would not produce earthquakes even at increased fluid pressures, since a fault also needs to be oriented properly with respect to the stress field to fail.) In contrast, seismogenic faults were all associated with some pore pressure increase, though the magnitude of the increase was generally modest spanned a significant range (as expected for faults with different but generally favorable orientations and diverse histories). Figure is from Hennings et al. (2021). https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1628649928110-UU91TFLHAXKF3KBZ7IF7/Hennings+et+al+2021+Fig+3+mod.png Blog - New study tracks changes to stability of faults associated with Fort Worth Basin earthquakes - Make it stand out Figure 4. Increase of modeled pore pressure (solid lines), and estimated fault slip potential (dotted lines) over time on faults responsible for two out of ten earthquake sequences studied. Figure courtesy of Peter Hennings, after Hennings et al. (2021). https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1628645193764-I8YMAJ4V64SS7KREB94M/Hennings+et+al+2021+Fig+1.jpg Blog - New study tracks changes to stability of faults associated with Fort Worth Basin earthquakes - Make it stand out Figure 1. Map of the Dallas–Fort Worth area of the northern Fort Worth Basin, northeast Texas, showing the maximum increase in modeled pore pressure (colored background) by Gao et al. (2021), earthquake locations (pink dots), mapped fault traces at the contact between the Ellenburger Group and crystalline basement (green faults hosted earthquakes and black lines did not), and Ellenburger saltwater disposal wells (blue triangles with size scaled by cumulative injection). The figure shows that earthquakes usually occurred in or near areas with the highest injected water volumes (and the highest increase in pore pressure), but many areas with elevated pore pressures experienced little or no seismicity, and some earthquake clusters occurred in areas with quite small increases in pore pressure. Figure is from Hennings et al. (2021). https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1628650269732-3CD8R15GDO76COKNZG85/Lund+Snee+2020+FWB+stress+small.png Blog - New study tracks changes to stability of faults associated with Fort Worth Basin earthquakes - Make it stand out Figure 3. State of stress in the Fort Worth Basin, northeast Texas. The orientation of maximum horizontal stress (SHmax; shown by the black lines) is consistently ~NE–SW in this area. The style of faulting (colored background) transitions from pure strike-slip in the north (yellow-green) to normal/strike-slip near Fort Worth (teal), to normal faulting further south (blue). Figure is after Lund Snee (2020) and includes data from Lund Snee & Zoback (2016, 2020) and Hennings et al. (2019). https://jenseriklundsnee.com/blog/2021/8/4/the-fault-responsible-for-julys-m60-eastern-california-earthquake-was-well-aligned-for-failure-in-the-stress-field monthly 0.5 2021-08-10 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1628109873076-KNGDZ4LET37EACXRXI9M/Lund_Snee_Zoback_Markleeville_California_earthquake_and_stress Blog - Kinematics of M6.0 July 2021 Eastern California earthquake as expected within the mapped stress field - Make it stand out Map of the state of stress in North America by Lund Snee and Zoback (2020) showing the location and U.S. Geological Survey focal mechanism for the 8 July 2021 Antelope Valley, California, earthquake. Black lines are measured orientations of the maximum horizontal principal stress (SHmax), and the colored background represents the style of faulting (relative stress magnitudes, represented by the Aϕ parameter). Inset to lower-left is a close-up of the area surrounding the epicenter location. In that area, several black lines indicate a north–south SHmax orientation, and the teal background color represents normal/strike-slip faulting. https://jenseriklundsnee.com/blog/2020/3/27/magnitude-50-earthquake-shakes-west-texas monthly 0.5 2021-10-03 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1585492243423-8RHSGM6TM3ZAAR9228O8/Lund+Snee+Dvory+2020+Permian+Basin+earthquake+history.png Blog - Magnitude 5.0 earthquake shakes West Texas Figure 1. The recent M5.0 earthquake occurred near a dense trend of recent, mostly small-magnitude events (colored red) in the southern and central Delaware Basin, a subregion of the Permian Basin in west Texas and southeast New Mexico. Earthquakes are from the USGS (ANSS ComCat), TexNet, and Doser et al. (1991, 1992). NWS—Northwest Shelf; DB—Delaware Basin; CBP—Central Basin Platform; MB—Midland Basin. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1585492204537-DXLDDUPU5IW7M0LI0FFU/Lund+Snee+Dvory+2020+Permian+earthquake+M5+Mentone.png Blog - Magnitude 5.0 earthquake shakes West Texas Figure 4. Locations of injection and disposal wells (from Enverus DrillingInfo), colored by the distance between their permitted bottom-hole depth and the top of the crystalline basement (colored background, mapped by the Texas Bureau of Economic Geology). Only active and permitted wells are shown. Faults are colored by their slip potential (from Lund Snee has & Zoback, 2018). Faults were compiled from Ewing et al. (1990), Green and Jones (1997), Ruppel et al. (2005), and the USGS Quaternary Faults and Folds Database (Crone and Wheeler, 2000). Also shown are recent earthquakes from the TexNet seismic catalog (black circles) and active drill rigs (black triangles) from DrillingInfo. The USGS basement domain boundary is from Lund et al. (2015). The nearest frac job reported to FracFocus on 26 March 2020 was more than 40 km to the east, likely much too far away to have triggered the event. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1585506212398-0E72OI96C1QHLKMM7N1S/Lund+Snee+2020+Permian+M5+Mentone+earthquake.png Blog - Magnitude 5.0 earthquake shakes West Texas Figure 3. The earthquake occurred on a ~E–W-striking, previously unknown normal fault, consistent with stress mapping (Lund Snee & Zoback, 2016, 2018, 2020) that indicates a mostly normal faulting stress field with maximum horizontal principal stress (SHmax) oriented ~E–W. Focal mechanisms are from Saint Louis University (SLU), except for the M5.0, which is from the U.S. Geological Survey (USGS). The USGS basement domain boundary is from Lund et al. (2015), and the Grenville orogenic front is from Thomas (2006). https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1585519031724-5TQJIH15F26K16QJRIQ0/Lund+Snee+Dvory+2020+Permian+Basin+Mentone+M5+earthquake+Mag-TIME+MAR+2020.jpg Blog - Magnitude 5.0 earthquake shakes West Texas Figure 2. The area near Thursday’s M5.0 earthquake was quiet until late last year, when a cluster of small (M < 2) events formed (one M0.9 event occurred in May 2019). Earthquake magnitudes increased early this year leading up to the MW5.0 mainshock. The earthquake catalog shown here is from TexNet, which reported a lower ML4.6 for the mainshock. https://jenseriklundsnee.com/blog/tag/Lund+Snee+J.-E. monthly 0.5 https://jenseriklundsnee.com/blog/tag/name+change monthly 0.5 https://jenseriklundsnee.com/blog/tag/Lundstern monthly 0.5 https://jenseriklundsnee.com/blog/tag/Lund+Snee monthly 0.5 https://jenseriklundsnee.com/blog/tag/Lundstern+J.-E. monthly 0.5 https://jenseriklundsnee.com/home daily 1.0 2022-06-17 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/4cf75f4e-d58c-45c5-802d-620db0312b51/Lund+Snee+desert+Joshua+Tree.jpeg Home - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://jenseriklundsnee.com/about daily 0.75 2025-11-14 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1482879101677-O3GEV59LY05RVOHKTXK7/JensErikLundSnee_Eastern_Sierra_2016 About https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/8678000a-1b4e-4cc0-aff6-4d16b78141e7/IMG_1755.jpeg About - Make it stand out Photo by Theresa Schwartz. https://jenseriklundsnee.com/lundstern-cv daily 0.75 2025-08-14 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1517709199247-9CQ4VYH48ZU6IOZ6CLKY/Chlorite_muscovite_schist_thin_section_Jens_Lund_Snee_2016.jpg CV https://jenseriklundsnee.com/tectonic-history-western-united-states daily 0.75 2024-04-05 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/d7c40b34-69a2-4866-b407-034c2c3a9ff2/Elizabeth+Miller+Mark+Raftrey+Jens+Lund+Snee+2021+Downhill+to+Las+Vegas.png Tectonic history of the Western United States - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/c6956089-6c1c-432d-b4c9-40f371d0baa4/Preliminary+geologic+map+of+Cenozoic+units+of+the+central+Robinson+Mountain+volcanic+field+and+northwestern+Huntington+Valley%2C+Elko+County%2C+Nevada+%28Lund+Snee+and+Miller%2C+2015%29 Tectonic history of the Western United States - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/16b7a31d-a733-4463-b1c0-ded8f7896010/IMG_1115.jpeg Tectonic history of the Western United States - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/6ede4046-d718-4f05-9d16-e4044a6eb4e8/Jens+Lund+Snee+Elizabeth+Miller+Nevadaplano+migrating+topography+volcanism.png Tectonic history of the Western United States - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/8974cb50-8c40-4bf5-8872-109f2c7633d5/Lundstern_et_al_2024_sNV_basins_depositional_timing.png Tectonic history of the Western United States - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/535ac520-492a-432c-a0be-4e6b51355f99/Lund+Snee+Miller+et+al+2016+Elko+Pinon+Ruby+cross+section.png Tectonic history of the Western United States - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/fbb92806-86e1-4dac-8342-a26af95fecac/Preliminary+bedrock+geologic+map+of+the+Spotted+Range+and+surrounding+areas+%28Lund+Snee+et+al.jpg Tectonic history of the Western United States - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://jenseriklundsnee.com/stress daily 0.75 2024-04-05 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/85a2a253-bbc3-4952-b530-1e54ea066956/Lundstern_et_al_2023_Nodal_Plane_Diversity_results_Fixed_shear.png Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/2a796f74-f770-4020-b913-79a8d5025bb0/Lund+Snee+2020+Mohr+demonstration+after+Zoback+and+Lund+Snee+2018 Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/57f4f6df-008a-4852-a7ee-8cdf010a68e9/Lund+Snee+fractures.jpeg Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1634522057093-91053F4FOS7ZNZ76FUI5/Lund+Snee+stress+magnitudes+from+Aphi Crustal stress & geodynamics - Constraints on stress magnitudes as a function of Aphi from Lund Snee (2020, Ph.D. thesis, Chapter 7) https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/6b54e799-2fca-4b91-a1d8-2fdf469dc865/Lund+Snee+2020+Permian+Basin+FSP.png Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/c5bf2d58-5be5-49e0-a2b4-c95007047dae/Hennings+Lund+Snee+et+al+2021+Pore+pressure+fault+change+Fort+Worth+Basin.png Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/a9617255-db37-4363-a3ae-467eb5acf41e/Smithy_Creek_fault_zone_New_Zealand_photogrammetry_Lund_Snee_et_al_2014 Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/7faa1b73-da0b-4c1d-b218-563bb4d1ea9f/Fig4_REVbao_plateStressCartoon.png Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/a368876a-1f04-4b41-abd9-edad67761313/Lund_Snee_2020_PhD_Azle.png Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/68fcb403-12c4-413d-8459-1f8256d17ee4/Jens+Lund+Snee+Zoback+2020+North+America+stress+map.png Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/520eaed2-5f4a-45e8-8e6c-044615a8b63b/Fort+Worth+Basin+fault+slip+potential+Lund+Snee+2020+Hennings+et+al+2019.png Crustal stress & geodynamics - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://jenseriklundsnee.com/resources daily 0.75 2022-12-19 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1587781311227-JKQZKGJ6R6F4Q8C7EVCH/Lund+Snee+Zoback+2020+North+America+Aphi+stress.png Resources - Style of faulting (Aɸ) grid for the North America stress map Data grids for the colorful background grid of relative principal stress magnitudes (presented using the Aɸ parameter) from Lund Snee & Zoback (2020) and Lund Snee (2020). Includes the data grids in GeoTIFF, ESRI layer package (for ArcGIS), and KML (for Google Earth) formats. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1596427159711-2P7JSPAFIMTX5ZS96JD3/Lund_Snee_SHmax.png Resources - SHmax orientation shapefile and KMZ for the North America stress map Maximum horizontal principal stress (SHmax) orientations from Lund Snee & Zoback (2020) and Lund Snee (2020), and sources therein. Includes the data as vector files in ESRI layer package (symbolized shapefile for ArcGIS), and KML (for Google Earth) formats. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1541134763081-C2RXSLS4LC66IC988Q1M/Jens-Erik+Lund+Snee+focal+mechanism Resources - Applications of inter-source seismic interferometry As part of a course in earthquake seismology, I explored applications of the virtual seismometer method (VSM), also called inter-source seismic interferometry. This promising technique, introduced by Curtis et al. (2009), allows geoscientists to find the Green function between nearby earthquakes by estimating the response that would be detected at one earthquake location if it were a seismometer observing the others. I wrote this term paper to report the theory, historical development, and range of possible applications for this new technique, which I hope will gain broader use in the near future. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1596427773763-N5XB5MC2MUIIAYEA3A9M/Lund_Snee_SHmax.png Resources - Data tables for the North America stress map Data tables from Lund Snee & Zoback (2020) and Lund Snee (2020). Tables include all SHmax orientations (including from Lund Snee & Zoback, 2016, 2018, and Hennings et al., 2019), Aɸ (faulting regime) map control points, and all focal mechanisms used to build the Aɸ map. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1494187658887-MRGLYNI5X379G075FTXW/image-asset.png Resources - Masters thesis Titled Geology and geochronology of Cenozoic units in the Piñon Range and Huntington Valley, Nevada, this thesis contains data and descriptions that weren't published by Lund Snee and Miller (2015) and Lund Snee et al. (2016). https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1541133805417-O3V28DRGWITKCGX9V9HK/Jens-Erik+Lund+Snee+Mark+Zoback+2020+stress+quality+criteria Resources - Updated quality criteria for stress measurements This table, from my dissertation and Lund Snee & Zoback, 2020), provides updated quality criteria for stress measurements (the same criteria are available on the Stress and Geomechanics Research page, via this link). Quality criteria are given for maximum horizontal principal stress (SHmax) orientations using several methods, as well as relative principal stress magnitudes (Aφ) obtained from focal mechanism inversions. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1586189409721-19QYMES7A0PKDPC7SEGU/Lund_Snee_2020_North_America_stress_map_LR.png Resources - Dissertation State of stress in North America: Seismicity, tectonics, and unconventional energy development https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1542039840857-MR7HWDXAKRAQUBK6OM65/Pinon_Range_Lund_Snee.jpeg Resources - Geologic map of Cenozoic units in the eastern Piñon Range and central Huntington Valley, northeast Nevada Geologic map of part of the Elko Basin and nearby areas in northeastern Nevada (Lund Snee & Miller, 2015, NBMG map). Click here for the accompanying cross sections and here for the supporting text. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1586192881531-WSA3IZR1I4DZDZKOXKPH/Lund+Snee+2020+State+of+stress+in+North+America+poster+thumbnail.png Resources - Poster-size next-generation stress map of North America Plate 1 of my Ph.D. dissertation. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1580322691076-XHERAUIKIFUKZNJ15IN9/Sustainability+in+the+Hydrocarbon+Value+Chain+in+Mexico+IMP+2018.jpg Resources - National Priorities Report: Sustainability in the Hydrocarbon Value Chain in Mexico This report emerged from a workshop led by the Mexican Institute of Petroleum (IMP) in 2018 regarding priorities for a sustainable hydrocarbon value chain following the Energy Reform Acts of 2013–2014. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1634522057093-91053F4FOS7ZNZ76FUI5/Fig2_Lund_Snee_stressmags.png Resources - Aɸ and stress magnitude calculators Calculators to determine the Aφ parameter (relative stress magnitudes) from absolute stress magnitudes, and vice versa. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1501994256514-SGF2ZQGG16E3RHSG7143/BBC_radioactive_waste Resources - Recommendations for nuclear waste storage in the United States ures compiled from Poole et al. (2005) and Thomas (2006). Approximate Ancestral Rocky Mountains uplift locations after Marsh https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1502140898218-6T2MWM6Y28RG614XM2L9/Lund_Snee_Basin_Model_Example Resources - Predicting overpressure with basin modeling Accurate predictions of porosity and pore pressure in buried sedimentary formations are of great importance for oil and gas exploration and production, and for drilling safety. However, these values are notoriously difficult to estimate before drilling a well, especially if the rocks have experienced a complex geologic history. Here I use existing basin and petroleum system modeling (BPSM) software to model these properties in a hypothetical reservoir. This term paper reports the results of my analysis and may be of interest to anyone interested in predicting pore pressure and porosity in the subsurface. https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1494186279529-O1GF7VG8VLXIAKE4P1N5/Crustal+structure+of+Texas%2C+New+Mexico%2C+and+Oklahoma Resources - Geologic history of Texas Crustal structure of Texas, New Mexico, and Oklahoma. Background is the U.S. Geological Survey Basement Domain Map by Lund et al. (2015). Llano Province outline after Whitmeyer & Karlstrom (2007).Limits of the Gulf of Mexico basin from Salvador (1987). Proterozoic and Paleozoic rift and transform structures compiled from Poole et al. (2005) and Thomas (2006). Approximate Ancestral Rocky Mountains uplift locations after Marshak et al. (2000) and sources therein. Jemez lineament location after Magnani et al. (2004) and Rio Grande rift location compiled from Seager and Morgan (1979) and Perry et al. (1987). Map compiled by Jens-Erik Lund Snee (2016). https://jenseriklundsnee.com/press daily 0.75 2022-10-02 https://jenseriklundsnee.com/research daily 0.75 2022-05-21 https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/b38ba619-9421-49ba-bc7f-5e9a3fe7d622/Jens+Lund+Snee+2020+stress+magnitudes+Aphi.png Research https://images.squarespace-cdn.com/content/v1/577fd7412e69cfdc8fbeb0d9/1582220464155-N9PDVACYE93RI6NGCYJ5/Lund+Snee+Miller+2020+Migrating+topography+magmatism+Basin+and+Range+faulting.png Research https://jenseriklundsnee.com/calculators daily 0.75 2025-09-01