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Jeff Moore

@utahgeohaz.bsky.social
560 followers 490 following 78 posts

Professor, Geomorphology, Seismology, Rock Mechanics. Translator of seismic soundscapes.

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Reposted by Jeff Moore
Ryan J Hollister @phaneritic.bsky.social · 02/10/2026
It had to happen sometime, but sad to see it go. www.sfgate.com/hawaii/artic...
sfgate.com
Hawaii's famed Holei Sea Arch is gone forever
The arch is believed to have been 550 years old.
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Reposted by Jeff Moore
Grand Canyon Trust @grandcanyontrust.bsky.social · 28/09/2026
Update: At least 72 new mining claims have been filed on lands illegally cut from Bears Ears National Monument. New map by @protectwildutah.bsky.social
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Reposted by Jeff Moore
Grand Canyon Trust @grandcanyontrust.bsky.social · 23/09/2026
As of yesterday, 23 new mining claims had been filed on lands illegally cut from Bears Ears National Monument.
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Reposted by Jeff Moore
Southern Utah Wilderness Alliance @protectwildutah.bsky.social · 09/09/2026
New polling shows, once again, majority of Utahns do not support the shrinkage of national monuments. Read more from @sltrib.com: www.sltrib.com/news/environ...
sltrib.com
Most Utahns want Trump’s cuts to Bears Ears, Grand Staircase reversed, survey finds
A new survey of Utah voters found that most respondents want to see Bears Ears and Grand Staircase-Escalante national monuments restored to their previous boundaries.
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Jeff Moore @utahgeohaz.bsky.social · 22/07/2026
Our new field site at Hovenweep National Monument, seismometer in the window of the rear structure.
Two ancestral Puebloan masonry structures at the Holly site, Hovenweep, built and occupied between 900-1300 CE.
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Reposted by Jeff Moore
Jan Beutel @janbeutel.bsky.social · 17/07/2026
Across the entire European Alps large high-alpine mass movements are increasing. Check out the Observational Seismic Catalog of Alpine Rockfalls (OSCAR) to dive into the details. If you have data to contribute, contact us: oscar.uibk.ac.at
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Jeff Moore @utahgeohaz.bsky.social · 16/07/2026
Undoing an extraordinary collaboration www.sltrib.com/news/environ...
sltrib.com
Here’s why tribes say Trump’s Bears Ears order changed more than the map
President Donald Trump gutted the Bears Ears National Monument, which was originally proposed by five tribes. He also disbanded the Bears Ears Commission, a model for tribal co-management of federal l...
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Reposted by Jeff Moore
Southern Utah Wilderness Alliance @protectwildutah.bsky.social · 15/07/2026
This article from @sltrib.com captures the scale of the recent monument reductions. Bears Ears is now 91% smaller, while Grand Staircase-Escalante remains only 10% of what it was. Details and maps can be found here: www.sltrib.com/news/environ...
sltrib.com
What’s left of Bears Ears and Grand Staircase-Escalante after Trump slashed the monuments’ boundaries? See the new maps.
The Grand Staircase is no longer inside Grand Staircase-Escalante National Monument. Valley of the Gods is now outside Bears Ears. See what else changed after Trump slashed the boundaries of Utah's tw...
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Jeff Moore @utahgeohaz.bsky.social · 14/07/2026
Toward the destruction of natural, wild places. Who benefits? www.sltrib.com/news/environ...
sltrib.com
President Trump drastically shrinks 2 Utah national monuments — again
Trump cuts nearly 3 million acres out of the two monuments in southern Utah.
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Reposted by Jeff Moore
Southern Utah Wilderness Alliance @protectwildutah.bsky.social · 13/07/2026
🚨 BREAKING NEWS 🚨 President Trump just signed two executive orders reducing Grand Staircase-Escalante and Bears Ears National Monuments by a combined 3 million acres, according to media reports. Below is a statement from SUWA Executive Director, Scott Braden. Stay tuned for next steps.
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Reposted by Jeff Moore
Southern Utah Wilderness Alliance @protectwildutah.bsky.social · 10/07/2026
Media reporting indicates that next Monday President Trump will sign two presidential proclamations/executive orders attacking Grand Staircase-Escalante and Bears Ears National Monuments, both of which lie in the heart of redrock country in southern Utah. More info: suwa.org/suwa-stateme...
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Jeff Moore @utahgeohaz.bsky.social · 29/06/2026
Sea arch collapse in Malta killing one. "Sources told Times of Malta the arch collapsed just after a man dived off it into the sea below." Victim was below the arch on a jet ski. timesofmalta.com/article/pers...
timesofmalta.com
Efforts continuing to recover dead tourist trapped underwater after rockfall
A natural rock arch collapsed onto a jet ski, killing one and injuring two
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Jeff Moore @utahgeohaz.bsky.social · 25/03/2026
Tower in Motion: Resonance Mode Analysis of Devils Tower; new from us, now published in GSA Today: www.geosociety.org/GSA/Publicat...
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Reposted by Jeff Moore
WSDOT North @north.wsdot.wa.gov · 20/03/2026
UPDATE 3PM: Aerial views, courtesy of Finn Wendt at the Cascadia Daily News, show the scale of the slide south of Bellingham. At least one of the rocks is bigger than a bus. NB I-5 remains closed, movement on the slope prevents crews from safely beginning cleanup. (1/2)
Aerial view of a slide along northbound Interstate 5 south of Bellingham. Vehicles are parked to the left of the slide, which covers have of the northbound lanes. Photo courtesy of Finn Wendt/Cascadia Daily NewsAerial view shows a slide along northbound Interstate 5 south of Bellingham from the side. The slide covers the right lane of the highway, with downed tress pushing into the left lane. Vehicles are parked in the distance. Photo courtesy of Finn Wendt/Cascadia Daily News
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Reposted by Jeff Moore
Southern Utah Wilderness Alliance @protectwildutah.bsky.social · 04/03/2026
Today, the elected officials behind 2025’s failed public lands sell-off attempts introduced a joint resolution to undo the National Monument's Management Plan. This assault on a national monument marks a significant escalation in Congress’ use of the CRA. Read more: suwa.org/senator-lee-...
suwa.org
Senator Lee, Rep. Maloy introduce joint resolution to undo Grand Staircase-Escalante National Monument Management Plan - 3.4.26
FOR IMMEDIATE RELEASE  March 4, 2026 Senator Lee, Rep. Maloy introduce joint resolution to undo Grand Staircase-Escalante National Monument Management Plan – 3.4.26 Threatens to bring chaos to a crown...
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Jeff Moore @utahgeohaz.bsky.social · 17/02/2026
Arch collapse in Italy: www.cnn.com/2026/02/16/t...
cnn.com
Italy’s famous ‘Lovers’ Arch’ collapses on Valentine’s Day | CNN
A powerful Valentine’s Day storm destroyed a centuries-old seaside arch in southern Italy long associated with romance, dealing a blow to local tourism and highlighting concerns about coastal erosion ...
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Jeff Moore @utahgeohaz.bsky.social · 30/01/2026
Quick displacement assessment using the DIC tool of Bickel et al. github.com/bickelmps/DI... with Planet imagery. Very large and well resolved displacements.
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Jeff Moore @utahgeohaz.bsky.social · 16/12/2025
Massive landslide Friday closes Highway 229 between Siletz and Kernville, damaging homes and sending debris into river: lincolnchronicle.org/massive-land... 📷ODOT
An aerial photo from the Oregon Department of Transportation shows the top of the hill above the Siletz River where Friday morning’s landside began before hitting residential properties below and ending up in the river.
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Jeff Moore @utahgeohaz.bsky.social · 27/10/2025
This is what a vibrating saguaro sounds like (sped up ambient vibration with coeval ambient audio): geohazards.earth.utah.edu/images/Sagua...
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Jeff Moore @utahgeohaz.bsky.social · 22/10/2025
This was an interesting study for me, something new: bsapubs.onlinelibrary.wiley.com/doi/10.1002/...
Four saguaro cacti with mounted seismometer
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Jeff Moore @utahgeohaz.bsky.social · 16/10/2025
Hellroaring Bridge, Utah, field work with the team (and dog).
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Jeff Moore @utahgeohaz.bsky.social · 08/10/2025
Nice to be out measuring vibration of arches again
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Jeff Moore @utahgeohaz.bsky.social · 22/09/2025
Rainbow Bridge in Bridge Canyon, Utah, topographic shading
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Jeff Moore @utahgeohaz.bsky.social · 29/07/2025
Surveying movement of big landslides (DSGSD) in Colorado
Graduate student carrying a GPS approaches a large double ridge feature of a deep seated landslide, with other landslide scarps visible in the background.
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Jeff Moore @utahgeohaz.bsky.social · 17/07/2025
Takeoff: field survey, AK 2023
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Jeff Moore @utahgeohaz.bsky.social · 27/06/2025
Dramatic video shows rockfall narrowly missing people at iconic Utah waterfall www.ksl.com/article/5133...
ksl.com
Dramatic video shows rockfall narrowly missing people at iconic Utah waterfall
Federal land managers are advising hikers to be careful around a popular hiking and swimming spot in the Grand Staircase-Escalante National Monument after a rockfall Wednesday.
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Reposted by Jeff Moore
Grand Canyon Trust @grandcanyontrust.bsky.social · 17/06/2025
Millions of acres of our public lands could be available for sale under the Senate's version of the budget reconciliation bill. Learn more on the blog: bit.ly/senate-bill-...
bit.ly
Senate Budget Bill Proposes Massive Sale of National Public Lands | Grand Canyon Trust
Up to 120 million acres of our public lands could be available for sale. If that happens, hunting, camping, birdwatching, and hiking opportunities would be lost forever.
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Jeff Moore @utahgeohaz.bsky.social · 23/05/2025
Still over here measuring vibration of stuff
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Reposted by Jeff Moore
Bears Ears Inter-Tribal Coalition @bearsearscoalition.bsky.social · 20/05/2025
Western voters overwhelmingly support keeping national monument protections in place, and ensuring Tribal Nations help lead the care of their sacred places. → 88% support monument protections → 83% of Republicans, 87% of Independents, 97% of Democrats → Even 4 in 5 MAGA voters agree 📸: Tim Peterson
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Jeff Moore @utahgeohaz.bsky.social · 25/04/2025
National monuments are hugely popular with Utah voters, yet here we go again with attacks on OUR public lands: www.sltrib.com/news/environ...
sltrib.com
Trump may shrink 2 Utah national monuments to expand mining and drilling in the West, per report
After declaring a national energy emergency earlier this year, President Donald Trump is looking to roll back federal protections to promote energy development.
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Jeff Moore @utahgeohaz.bsky.social · 14/04/2025
Mancos shale over here doing weird stuff
A black rock tower rises out of a gray muddy Hill
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Jeff Moore @utahgeohaz.bsky.social · 28/02/2025
Seismometer installed, 3D models generated... Hovenweep Castle and Square Tower, UT sketchfab.com/3d-models/ho...
Students carry a long pole used for photogrammetry outside stacked block and mortar structures at Hovenweep National MonumentBlock and mortar structures at Hovenweep National Monument, the so called Hovenweep Castle
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Jeff Moore @utahgeohaz.bsky.social · 07/02/2025
The old places are still: our new vibration monitoring subject, Hovenweep Castle, UT
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Jeff Moore @utahgeohaz.bsky.social · 29/01/2025
Dog in the canyon, Utah
A beautiful black and white dog emerges from a sandstone slot canyon in Utah
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Jeff Moore @utahgeohaz.bsky.social · 27/01/2025
Arsenic Arch, Utah, puppy for scale
A natural rock arch frames a beautiful black and white puppy
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Jeff Moore @utahgeohaz.bsky.social · 22/01/2025
New from us, led by the wonderfully talented postdoc Guglielmo Grechi: Identifying fracture-controlled resonance modes for structural health monitoring esurf.copernicus.org/articles/13/...
esurf.copernicus.org
Identifying fracture-controlled resonance modes for structural health monitoring: insights from Hunter Canyon Arch (Utah, USA)
Abstract. Progressive fracturing contributes to structural degradation of natural rock arches and other freestanding rock landforms. However, methods to detect structural changes arising from fracturi...
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Jeff Moore @utahgeohaz.bsky.social · 20/01/2025
A rare view of Mesa arch without the crowds. We've measured vibration at this arch more times than any other.
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Jeff Moore @utahgeohaz.bsky.social · 16/01/2025
Barrette Arch, a singular voice - ambient vibration data sped up 100X. The arch sings two tones at A and C, an earthquake provides percussion: soundcloud.com/user-9358693...
soundcloud.com
Barrette Arch
Ambient vibration of Barrette Arch (Utah) measured in-situ using a Nanometics Trillium Compact 20s seismometer, sped up 100X to make the resonant frequencies of the arch audible. The first two modes o
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Jeff Moore @utahgeohaz.bsky.social · 15/01/2025
Hoping this beautiful Ancestral Puebloan building site at Hovenweep National Monument will be our next vibration monitoring project.
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Jeff Moore @utahgeohaz.bsky.social · 09/01/2025
Deploying nodal seismometers on a lava tube roof in central Utah for vibration-based structural characterization, results here: link.springer.com/article/10.1...
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Jeff Moore @utahgeohaz.bsky.social · 08/01/2025
An audio piece I made for a video by Fazal Sheikh showing methane leaks at oil wells in UT and AZ. I recorded ground vibration at several pumpjack sites then sped these up and combined in a 10 min loop. Rather proud of how it turned out (pumpjacks): geohazards.earth.utah.edu/exposure/
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Jeff Moore @utahgeohaz.bsky.social · 08/01/2025
Took this photo as I walked away from this field site for the last time, it just happened to be at sunset, fitting. Fun to see it on the cover of @weareseismica.bsky.social Seismica, V3N2: seismica.library.mcgill.ca/issue/view/118
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Jeff Moore @utahgeohaz.bsky.social · 22/12/2024
In a rare move, Canyon de Chelly National Park in Arizona to ban commercial air tours: apnews.com/article/nati...
apnews.com
Canyon de Chelly in Arizona will become latest national park unit to ban commercial air tours
Commercial air tours will soon be prohibited over Canyon de Chelly National Monument in northeastern Arizona under a plan approved this week by the Federal Aviation Administration and the National Par...
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Reposted by Jeff Moore
Grand Canyon Trust @grandcanyontrust.bsky.social · 19/12/2024
This map of the uranium haul route from Pinyon Plain Mine near Grand Canyon Nat'l Park was our most widely shared map of 2024. 100,000+ people viewed it, 18,000+ signed the petition. If you were one of them, THANK YOU. 5 maps to give you hope for 2025: www.grandcanyontrust.org/blog/5-maps-...
Map showing with a red line the route uranium trucks travel from the Pinyon Plain mine near the Grand Canyon to the White Mesa Mill in Utah.
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Jeff Moore @utahgeohaz.bsky.social · 18/12/2024
Utah sandstone out here doing weird stuff
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Jeff Moore @utahgeohaz.bsky.social · 12/12/2024
PhD student Molly McCreary will be presenting our work on long-term seismic preparation of deep-seated landslides in Prince William Sound, AK tomorrow at #AGU24: agu.confex.com/agu/agu24/me...
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Jeff Moore @utahgeohaz.bsky.social · 11/12/2024
Harriman Fiord, Prince William Sound, AK, field work at Serpentine Glacier summer 2023.
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Jeff Moore @utahgeohaz.bsky.social · 06/12/2024
Field work last summer at Rainbow Bridge, UT, cosmogenic 10Be depth profile analyses coming soon!
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