⚒️ 🧪 A M6.9 earthquake struck Cebu island in the Philippines today, causing at least 20 deaths. The rupture seems to have occurred on an unmapped fault, started below the ocean and continuing to the southwest, passing near populated areas of Cebu. Read more:

Fascinating new results from @atterholt.bsky.social and colleagues who use seismic signals recorded on a fiber-optic cable near Arcata, California to learn about the earthquake rupture process of the 2024 magnitude-7 offshore earthquake. www.science.org/doi/10.1126/...

Northwestern Venezuela was struck by several large earthquakes today and yesterday (M6.2, 5.8, 6.3). Why did these shallow thrust events occur in an area where previously only strike-slip earthquakes have been documented? We speculate about the geology in our latest post. ⚒️ 🧪

⚒️ 🧪 Were you one of the tens of thousands in the Bay Area woken up by the M4.3 earthquake last night? The earthquake occurred on the Hayward Fault, which runs along the east side of the valley. Learn more about what we know, and don't know, about the Hayward Fault and its seismic hazard:

⚒️ 🧪 Another big addition to the remarkable M8.8 earthquake sequence offshore Kamchatka: a M7.8 - the biggest aftershock so far. With foreshocks, aftershocks, aftershocks of foreshocks, and foreshocks of aftershocks, it's hard to keep these earthquakes straight! Read more about what's going on:

⚒️ 🧪 Another big addition to the remarkable M8.8 earthquake sequence offshore Kamchatka: a M7.8 - the biggest aftershock so far. With foreshocks, aftershocks, aftershocks of foreshocks, and foreshocks of aftershocks, it's hard to keep these earthquakes straight! Read more about what's going on:

PRI is very close to raising the funds they need, but must do so before the end of the year. A major donation or lots of small support could make the difference. PRI does a lot of good science, many researchers use their collections, and they are also a center of climate change & teacher education

⚒️ 🧪 A M7.4 earthquake struck Russia's Kamchatka peninsula today: the largest aftershock so far of the great M8.8 on July 29th. What do we see in the seismic data so far? And what are the chances of a triggered earthquake next door? earthquakeinsights.substack.com/p/m74-earthq...

⚒️ 🧪 A M7.4 earthquake struck Russia's Kamchatka peninsula today: the largest aftershock so far of the great M8.8 on July 29th. What do we see in the seismic data so far? And what are the chances of a triggered earthquake next door? earthquakeinsights.substack.com/p/m74-earthq...

🔔#Earthquake (#землетрясение) M7.4 occurred 110 km E of #Petropavlovsk-Kamchatskiy (Russian Federation) 28 min ago (local time 14:37:54). More info at: 📱https://m.emsc.eu/#app 🌐https://m.emsc.eu/?id=1864930 🖥https://www.emsc-csem.org/Earthquake_information/earthquake.php?id=1864930

Earth & Atmospheric Sciences amongst the programs being axed 🧪⚒️

I have just heard an ALARMING report that my former Department of Earth and Atmospheric Sciences at the University of Nebraska is threatened with elimination, due to a university & state-wide budget crisis, and despite their ongoing success in scholarship and teaching. This is really shocking.

⚒️ 🧪 The situation in Afghanistan is dire following the M6 earthquake on August 31st. More than 2,200 people have died; reports indicate that 65% of buildings in the region were destroyed. Meanwhile, satellite imaging has begun to reveal both devastation and scientific details about the quake.

Great in-depth article about the M8.8 earthquake in Kamchatka - exploring all the fun questions, like: What was it about the foreshock sequence that triggered the M8.8? Why wasn't the tsunami bigger? Did the earthquake trigger an eruption? Answers are hard, but the science process is fun. ⚒️ 🧪

⭐️⭐️⭐️⭐️⭐️ “Earthquake Insights” by @judithgeology.bsky.social and Dr. Kyle Bradley is consistently well-written, well-researched, and accessible to everyone from experts to the scientifically interested public (no small feat)! Worth subscribing.

⚒️ 🧪 If you've seen breathless reporting about a seismic swarm near a "supervolcano" in northern Nevada, don't worry: that is just where Yellowstone was, 15 million years ago. There is no supervolcano there now. But the swarm, and the geology here, is pretty neat! Read about it in our latest post:

why we are doing this: PRI is one of America's largest museum collections, and they need to raise the last 1/3 of funds (~$1mil) needed to pay off their mortgage by Dec (a donor backed out of a pledge) or it will be the largest orphaned collection in US history. www.science.org/content/arti...

More than 1,400 people are reported dead following the M6.0 #earthquake in Afghanistan on Aug 31, 2025. This makes it even deadlier than the 2022 Mw6.2 eq and the 2023 series in Afghanistan, making it one of the deadliest eqs in the 21st century. ⚒️🧪 #geology www.reuters.com/business/env...

⚒️ 🧪 What are the best resources for finding rapid InSAR images after earthquakes? I'm familiar with a couple but finding that there are variable time lags in processing.

Day 126 of photoshopping @lastweektonight.com's John Oliver with fossils in the hopes that he helps the Paleontological Research Institution John (H. sapiens) having some unicorn time with the type specimen of Terebra aclinica (USNM645154) #SavePRI #snails #fossils #MolluskMonday #EarthScience 🦑⚒️🦄

⚒️ 🧪 A magnitude 6 earthquake struck northeastern Afghanistan just before midnight on August 31st. Vulnerable homes built of mud, brick, stone, and wood collapsed; the reported death toll has exceeded 800 people. Why do earthquakes occur here, what happened in this one, and why was it so deadly?

A M7.5 earthquake just struck a remote corner of the Antarctic Plate, below the Drake Passage. What’s going on in this fascinating part of the world? We wrote about it last May, after a M7.4 earthquake. We have made that post free to read, and added a few new maps and thoughts. ⚒️ 🧪

Hey folks! #Geology often gets overlooked in schools Which is crazy, because it explains why the world looks the way it does – from #mountain ranges to the ground beneath your feet So I want to fix that! How? By making a new educational tool for cool experiments in schools <3

⚒️ 🧪 A M6.1 earthquake struck western Türkiye today, causing one death. This area is no stranger to earthquakes. In 1969, a M6.1 quake was followed by a M6.8, then a year later a M7.2, all on different faults. Were these triggered events? And how should we think about the risk now?

THANK YOU to our new paid subscribers, who have put us in the top-10 "rising" bestsellers in science on Substack! ❤️ We rely on this income, so your contributions are much appreciated. Anyone can subscribe for free and read all new posts; paid subscribers get access to >300 posts in our archive.

Holy crap. This is poetry. I have seen a sarcastic debunkening this melodious in quite some time.

⚒️ 🧪 A satellite took a picture of the tsunami as it crossed the ocean! And other things we’ve learned about the M8.8 Kamchatka earthquake - the sixth large earthquake ever recorded. earthquakeinsights.substack.com/p/updates-on...

#NASACuts #Landsat, one of NASA's proudest achievements in Earth Sciences, is being "reformulated" but in practice it means it will be killed (see @nasawatch article). Learn about its history and how much it has contributed to taxpayer, society and business. en.wikipedia.org/wiki/Landsat...

Much of this week's Science in Action is taken up with the Mw8.8 earthquake in Kamchatka and the tsunami that followed. www.bbc.co.uk/programmes/w...

⚒️ 🧪 What do we know about the M8.8 earthquake that struck offshore Russia yesterday? We explore patterns in the foreshocks and aftershocks, compare the USGS seismic catalog with a local seismic database, and compare the event to the great 1952 earthquake.

Great article with comments by @diegosismologo.bsky.social, @acarrerac.bsky.social, @seismo-steve.bsky.social and @judithgeology.bsky.social. Though the tsunamis weren't as massive as past events, people evacuated because of timely warnings and accurate forecasting of when/where waves would arrive.

Last night, after the M8.7 in Kamchatka, warnings went out to Hawaii, Japan, and the U.S. West Coast within minutes. Wave forecasts were updated as new info came in. That’s a huge leap from where we were even 20 years ago.

In 1946, a tsunami from an Alaska earthquake killed 159 people—mostly in Hawaii. There was no warning. This tragedy led to the founding of the Pacific Tsunami Warning Center in 1949. It was one of the first federally funded efforts to mitigate tsunami risk www.youtube.com/watch?v=8Bi3...

⚒️ 🧪 A M8.8 earthquake just ruptured the subduction zone offshore Russia’s Kamchatka peninsula. This is one of the world’s truly huge earthquakes, and a triggered tsunami is currently traveling across the Pacific ocean. This same fault ruptured on July 20th in a M7.4, and last August in a M7.1.

The magnitude has been further refined to M8.8. It may seem like 8.7 and 8.8 are close, but the difference actually means about 40% more energy released. Logarithmic scales will do that! Want to know the difference between any two magnitudes? Try this calculator: earthquake.usgs.gov/education/ca...

...and a M8.7 earthquake just hit the Kamchatka peninsula. I guess this lends weight to the megaquake advisory idea... earthquake.usgs.gov/earthquakes/... This is a big earthquake, capable of triggering a trans-Pacific tsunami. Find the latest tsunami warnings here: www.tsunami.gov

🌟OPEN ACCESS🌟🔥PRESS RELEASE🔥In a new #TSR paper, scientists found direct visual evidence for curved fault slip. ⚒️ Press Release: www.seismosoc.org/news/curved-... Paper: pubs.geoscienceworld.org/ssa/tsr/arti... Video: youtu.be/dbEYe65eDdw

⚒️ 🧪 A M7.4 earthquake just struck Russia's Kamchatka peninsula - near where a M7.1 occurred last year. After that quake, we explored the idea of a megaquake advisory, like we’d seen in Japan. What does this new earthquake tell us about megaquake advisories, as a concept?

⚒️ 🧪 A M7.3 earthquake struck offshore Alaska yesterday. This is the sixth earthquake above M7 in this small stretch of the subduction zone since 2020. This was a weird strike-slip earthquake, reminiscent of a similar quake in 2020. Did these ruptures happen in the slab, the upper plate - or both?

⚒️ 🧪 A M6.7 earthquake struck below the Weber Deep yesterday (a part of the Banda Sea, in eastern Indonesia). Actually, lots of earthquakes strike below the Weber Deep. What’s going on down there? We explore how curved subduction zones might cause strange stresses in sinking slabs.

⚒️ 🧪 Residents of several tiny islands in Japan's Ryukyu Archipelago have been feeling nearly continuous seismicity for almost two weeks. What do we know about swarms in this area, and what can we expect going forward? earthquakeinsights.substack.com/p/earthquake...

RFK Jr. has released the names of the first 8 members of his fraudulent ACIP committee. Martin Kulldorff is one of them. He was fired by Harvard for his complete and utter insanity about COVID19, including comparing masking to actions by theTaliban. www.dailymail.co.uk/sciencetech/...

This angle of the current Kīlauea eruption is even wilder! www.youtube.com/watch?v=Bqmp...

⚒️ 🧪 A M6.3 earthquake struck central Colombia today. Shaking was felt across the country, although fortunately damage seems limited. A vast area of Colombia is seismically active, thanks to shenanigans by the two (!) subducting slabs deep in the crust. What's going on down there?

Do you have a passion for marine geohazards and want a permanent job? Join us!

⚒️ 🧪 Two weeks ago, a video appeared showing slip in the Myanmar earthquake - the first time this has ever been recorded on video. What can we learn from it? We deep-dive the science. earthquakeinsights.substack.com/p/remarkable...

It’s Mary Anning’s birthday, so time to share @katebeaton.bsky.social’s brilliant cartoon again.

Anyone know more about the 39% cut to USGS? I have seen zero talk about what's happening with that agency.

Does anyone know of any efforts to install surveillance cameras on faults in order to try to capture fault slip in an earthquake?