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Donna Shillington

@djshillington.bsky.social
87 followers 39 following 20 posts

Geophysicist at Northern Arizona University

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Donna Shillington @djshillington.bsky.social · 13/08/2026
Nominations are open for the National Academies Committee on Solid Earth Geophysics. It is a fun and interesting committee - apply if you're interested! www.nationalacademies.org/projects/DEL...
nationalacademies.org
Committee on Solid Earth Geophysics
The Committee on Solid Earth Geophysics serves as the focal point for community discussion and community-agency interaction on issues related to the structure, dynamics, and evolution of the Earth. It...
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Donna Shillington @djshillington.bsky.social · 18/06/2026
A new paper by @tellurianite.bsky.social reveals reduced velocities in the lower crust beneath major volcanos in the Aleutian Arc, which may reflect elevated temperatures and/or siliceous crust in the making. Check it out! @nau-ses.bsky.social @lamont.columbia.edu @whoi.edu eos.org/editor-highl...
eos.org
A Snapshot of Continental Crust in the Making - Eos
New seismic images from the Aleutian Arc show how active volcanic arcs may build new continental crust, highlighting the complex transition at multiple stages.
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Donna Shillington @djshillington.bsky.social · 08/04/2026
In 2017-2018, IODP Expedition 381 recovered a record of tectonics, sedimentation and environmental change in the youthful and active Corinth Rift. Want to catch up on what's been learned? Check out our new synthesis paper! @nau-ses.bsky.social @ecord.bsky.social doi.org/10.1016/j.ma...
doi.org
Redirecting
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Donna Shillington @djshillington.bsky.social · 31/03/2026
A new paper by Yinchu Li out in Nature Communications today shows that fluids are not always the explanation for creeping megathrusts..... Check it out! @gtresearch.bsky.social @nau-ses.bsky.social www.nature.com/articles/s41...
nature.com
Electromagnetic imaging reveals insufficient fluids to explain shallow megathrust creep at the Shumagin Gap - Nature Communications
Controlled-source Electromagnetic imaging of the Shumagin Gap shows strong resistivity heterogeneity, with limited fluid volume and low inferred pore pressure along the shallow megathrust, suggesting ...
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Callan Bentley @callanbentley.bsky.social · 18/12/2025
New article in Science by the #JTRACK science team, led by Jamie Kirkpatrick, on extreme localization of the plate boundary megathrust fault at the Japan Trench: www.science.org/doi/10.1126/... ⚒️
science.org
Extreme plate boundary localization promotes shallow earthquake slip at the Japan Trench
The 2011 Mw9.1 Tohoku-oki earthquake is exceptional among great earthquakes for having peak slip of ~50-70 m on the shallowest portion of the plate boundary megathrust. Drill cores and geophysical log...
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Donna Shillington @djshillington.bsky.social · 12/12/2025
Many congratulations to Patrick Chindandali, who successfully defended his MS last week and deposited the final version of his excellent thesis today! Congrats, Patrick!!!
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 19/11/2025
Our Introduction to Oceanography class took a 5-day field trip to The Ocean, visiting some spectacular spots near Big Sur and Monterey. Some major storm systems battered the coast while we were there, so the weather was.... epic. But so was the geology, biology and oceanography 🙂.
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 30/10/2025
Do you use AI/ML methods in your Earth and environmental science research? NAU is hiring multiple positions! Check it out and apply! careers.nau.edu/jobs/assista...
careers.nau.edu
Assistant Professor (multiple positions), Applications of Artificial Intelligence and Machine Learning (AI/ML) - Flagstaff, Arizona, United States
Special Information This position is an on-site position which requires the incumbent to complete their work primarily at an NAU site, campus, or facility with or without accommodation. Opportunities...
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KNAU Arizona Public Radio @knauazpubradio.bsky.social · 21/10/2025
Thousands rallied in Flagstaff, Prescott Valley and at nearly a dozen other demonstrations against the Trump administration across northern Arizona this weekend.
buff.ly
Thousands rally in latest 'No Kings' protests across northern Arizona
Thousands rallied in Flagstaff, Prescott Valley and at nearly a dozen other demonstrations against the Trump administration in northern Arizona communities this weekend.
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 07/10/2025
A couple of SES undergrad and grad classes have recently ventured to the San Juan Mountains in Colorado to learn about fundamental geological processes that have shaped this spectacular range. The fall foliage wasn't bad either :)
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 29/09/2025
Fun afternoon of science on Saturday at the NAU open house in the Flagstaff Festival of Science! SES students and faculty showcased everything from volcanos and earthquakes to insects. Thanks to our amazing students for sharing their knowledge and to everyone who stopped by!
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 26/09/2025
Many congratulations to SES Prof @rengellia.bsky.social , who was awarded the prestigious @agu.org Asahiko Taira International Scientific Ocean Drilling Research Prize! www.agu.org/honors/taira
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Donna Shillington @djshillington.bsky.social · 18/09/2025
Not feeling like I live in the 'Land of the Free' these days... www.nytimes.com/live/2025/09...
nytimes.com
Trump Administration Live Updates: President Says Broadcasters Risk Losing Licenses When Hosts Criticize Him
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 17/09/2025
Check out our new website to learn more about the exciting research and educational opportunities in our school! ses-nau.org
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 05/09/2025
New paper alert! Former SES PhD student Leah Marshall alongside 2 SES profs, 3 former SES undergrads and colleagues investigate 15,800 years of carbon accumulation and environmental change in an Arctic watershed using lake sediment cores. Check it out! doi.org/10.1080/1523...
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 02/09/2025
Check out this livestream talk later today by geologist extraordinaire, Lisa Thompson (AZGS) “Geology, Geochemistry, and Potential Origins of the Basin volcano-sedimentary lithium deposit, Kaiser Spring volcanic field, Arizona”. tinyurl.com/AGS-2Sept-Pr.... @azgeology.bsky.social
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Donna Shillington @djshillington.bsky.social · 01/09/2025
We Ran the C.D.C.: Kennedy Is Endangering Every American’s Health www.nytimes.com/2025/09/01/o...
nytimes.com
Opinion | We Ran the C.D.C.: Kennedy Is Endangering Every American’s Health
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 19/08/2025
Grad student Aubrey LaPlante publishes results of mapping that tracks variations in paleo earthquake surface ruptures in Eastern California #ECSZ #paleoseismology #EDMAP #AGeS #NAU_geology, #SES_publications, #SES_students @rengellia.bsky.social pubs.geoscienceworld.org/gsw/lithosph...
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 15/08/2025
SES PhD student Grace Ward has been participating in a research cruise in the Tonga-Samoa area to pick up ocean bottom seismometers that have been deployed on the seafloor for 20 months recording earthquakes. They picked them all up! #nau_geology #saloongeo sites.google.com/msu.edu/salo...
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 18/08/2025
New paper alert! New research from former NAU PhD student Emerson Lynch, SES Prof @rengellia.bsky.social , and colleagues demonstrates that some upper plate faults in the Cascadia subduction zone are very active, with important earthquake hazards implications. Check it out! #nau_geology
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 12/07/2025
NAU SES scientists just finished 11 glorious days of lake coring and glacial geologic mapping around Turquoise Lake in Lake Clark National Park, western Alaska Range. Good weather, hard work, and epic landscapes => an unforgettable field season. #NAU_geology, #NAU_environsci, #NAU_climate
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Julie Elliott @julieelliott.bsky.social · 04/06/2025
Myself, @kdmorell.bsky.social, @djshillington.bsky.social, and Rob Witter (USGS) used an SSA community grant to host an Alaska Subduction Zone workshop in conjunction with a USGS meeting in January. The community grants are a great option if you're looking to fund a workshop/training. ⚒️
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Donna Shillington @djshillington.bsky.social · 30/05/2025
The budget bill passed by the house would dramatically increase the national debt because huge tax breaks for the wealthy will cost much more than 'savings' from cuts to essential programs Let's hope the senate has the sense to fix this. www.cbpp.org/.../house-re.... www.nytimes.com/.../05/23/up...
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Donna Shillington @djshillington.bsky.social · 09/05/2025
The dismantling of US science continues....
science.org
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 09/05/2025
The end of spring semester brings the opportunity to learn about (and celebrate!) the amazing research being undertaken by our grad and undergrad students. MS and PhD defenses! UG research symposium! First year grad student research showcase! Our incredible students are doing incredible things.
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Seismological Society of America @seismosocam.bsky.social · 09/05/2025
🎉Thank you National Science Foundation, for all the #NSFfunded #seismological science you support, including the SAGE and GAGE facilities operated by @earthscope.org. Our current understanding of #earthquakes, #volcanoes and #geodesy research would not be possible without you. ⚒️ 🧪
NSF logo and NSF 75 Years of Discovery & Innovation text against a royal blue background
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Margaret Fraiser @margaretfraiser.bsky.social · 09/05/2025
NSF’s entire Division of Equity for Excellence in STEM (EDU/EES), which “aims to provide opportunities for individuals from all backgrounds to actively participate and excel in STEM disciplines” and some of it congressionally mandated, was just notified they will be RIFed. www.nsf.gov/edu/ees/about
nsf.gov
About EES
The NSF Division of Equity for Excellence in STEM (EES) aims to provide opportunities for individuals from all backgrounds, especially those historically underrepresented in science and engineering.
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 01/05/2025
Today is NAU giving day! Please consider supporting SES with a donation. givingday.foundationnau.org/giving-day/1...
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Donna Shillington @djshillington.bsky.social · 01/05/2025
May 1 is NAU's giving day, and we are raising funds for an endowed professorship in Paul Umhoefer's honor. Paul was an amazing scientist, dedicated educator, and remarkable human. If you (like me) were lucky enough to know Paul, please consider making a donation! @nau-ses.bsky.social
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Donna Shillington @djshillington.bsky.social · 01/05/2025
The National Academies Committee on Solid Earth Geophysics is hosting a meeting on Marine Geophysics on May 28. We have a great list of speakers/topics, so it should be a great meeting. Join us! www.nationalacademies.org/event/44626_...
nationalacademies.org
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 24/04/2025
Join SES at the NAU Undergraduate Research Symposium on Friday, April 25 at the High Country Conference Center. Many fabulous SES students will be presenting exciting research results! #SES_students nau.edu/undergraduat...
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WeRateDogs @weratedogs.com · 12/03/2025
This is Tellen. She went to work with her human today. The only agenda item on her calendar is dropping toys in the hallway until someone plays with her. 14/10
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Donna Shillington @djshillington.bsky.social · 06/03/2025
"It is hard to put into words the extent of the damage being done to the US research enterprise, which is of almost incalculable value to both the nation itself and the wider world." www.nature.com/articles/d41...
nature.com
Trump 2.0: an assault on science anywhere is an assault on science everywhere
US President Donald Trump is taking a wrecking ball to science and to international institutions. The global research community must take a stand against these attacks.
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AGU (American Geophysical Union) @agu.org · 05/03/2025
AGU has joined a lawsuit challenging the firing of probationary employees at federal agencies. These actions weaken science, harm public health & the environment, and threaten national security. 🧵 #StandWithScience
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Dr. Jennifer Wade @volcanojw.bsky.social · 02/03/2025
This is not just horrific, it’s dangerous.
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 24/02/2025
Seniors in NAU a geology field class spent 5 days in the White Hills near Lake Mead for the first of two field trips for their final semester. Much geological mapping was done! #NAU_geology, #SES_students, #DiscoverNAU
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Sara Souther @sarasouther.bsky.social · 06/02/2025
labofconservationecology.com/blog/saguaro...
labofconservationecology.com
Saguaro-Huggers Unite! — The Lab of Conservation Ecology
Clare and I are in sunny Tucson, soaking up the desert vibes with the Smith Fellows and leading workshops on fire resilience. But no trip to the Sonoran Desert would be complete without a stop at Sagu...
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Donna Shillington @djshillington.bsky.social · 21/02/2025
We're not cutting fat. We're cutting off limbs. My heart breaks for the federal workers who were fired and for our country that will be SO much worse off without them. And for what? Federal workers make up less of the US workforce in the last ~century. www.washingtonpost.com/business/202...
washingtonpost.com
Trump wants to substantially cut the federal workforce. Here’s what it looks like.
While federal hiring has increased in recent years, federal workers, as a share of all American workers, remains at a historic low.
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AGU (American Geophysical Union) @agu.org · 19/02/2025
Federal science agencies are under threat. AGU has made it easy to advocate for NSF, NOAA, NASA and more. Visit AGU’s Science Policy Action Center to stand up for science. fromtheprow.agu.org/standing-tog...
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 13/02/2025
NAU achieves R1 status. Vibrant research programs and a growing doctoral program in SES contributed to that! news.nau.edu/r1-research-...
news.nau.edu
NAU achieves R1 research designation – The NAU ReviewNAU on TwitterNAU's Facebook pagerConnect with NAU on LinkedInFollow NAU on Instagram
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Donna Shillington @djshillington.bsky.social · 07/02/2025
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Kevin Anchukaitis @thirstygecko.bsky.social · 06/02/2025
White House budget proposal could shatter the National Science Foundation - 'The cuts could be as deep as 66 percent, with one person indicating the top-line budget number for the National Science Foundation could start at $3 billion.' vs. $9 billion currently arstechnica.com/science/2025...
arstechnica.com
White House budget proposal could shatter the National Science Foundation
“This kind of cut would kill American science and boost China.”…
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Kevin Anchukaitis @thirstygecko.bsky.social · 05/02/2025
Hope reporters are ringing Susan Margulies’ phone off the hook - what information does she have? Whose bidding is she doing?
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Donna Shillington @djshillington.bsky.social · 04/02/2025
Fabulous thread by @geophysichick.bsky.social describing what DEI is all about. To do the best science, we need the best people and the broadest range of perspectives!
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kate conger @kateconger.com · 03/02/2025
Our deep dive into Musk's takeover: Even some officials who like what Musk is doing feel helpless to hold him accountable. His allies are diving in to agencies, gaining access to systems, planning layoffs, and proposing a sweeping AI initiative to review contracts. www.nytimes.com/2025/02/03/u...
nytimes.com
Inside Musk’s Aggressive Incursion Into the Federal Government (Gift Article)
The billionaire is creating major upheaval as his team sweeps through agencies, in what has been an extraordinary flexing of power by a private individual.
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Chris Rowan @allochthonous.bsky.social · 02/02/2025
Britain: we’ve done it, folks. There is no possible way to intentionally fuck your own economy more than we did with Brexit. This historic self-own will not be surpassed for decades! USA: …
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Northern Arizona University School of Earth and Sustainability @nau-ses.bsky.social · 30/01/2025
Welcome back, Jacks! Curious about the School of Earth and Sustainability, or its corresponding majors? Our SES student ambassadors are geared up and ready to chat and answer any questions you may have! #SES_students, #DiscoverNAU
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Donna Shillington @djshillington.bsky.social · 20/01/2025
Check out this new paper in Geology lead by NAU PhD student Valeria Cortés-Rivas on links between the structure of the Aleutian subduction zone and its earthquake behavior. doi.org/10.1130/G528...
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