⚒️ 🧪 A paper in Science today highlighted a "progressive eastward rupture of the Main Marmara fault toward Istanbul." My thoughts on what a damaging Istanbul earthquake might look like, and whether recent earthquakes tell us something new, are in this article in the NYTimes:

The results are in! We have updated the post with an initial InSAR image for this earthquake, showing ground deformation in this event. Scroll to the end to find the new text with figures!

⚒️ 🧪 Japan just issued a “Subsequent Earthquake Advisory” following a M7.6 earthquake offshore Honshu. What does that mean? Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”? earthquakeinsights.substack.com/p/m76-earthq...

A magnitude 7.6 earthquake struck off the east coast of Aomori Prefecture in Japan, prompting tsunami advisories for parts of Honshu and Hokkaido. Japan lies in a tectonically complex area at the intersection of four tectonic plates, making it a highly seismically active area.

Information on the magnitude 7.6 earthquake in Japan, including an animation showing the seismic waves as they were detected by seismometers across North America. 🧪

What’s the source for the geothermal reservoir in the Jianghan basin of central China? A new #SRL paper explores. ⚒️ pubs.geoscienceworld.org/ssa/srl/arti...

⚒️ 🧪 Have you been watching the little swarm of earthquakes east of San Francisco (most recently, M3.7)? Here's a map and timeline.

M 3.7 earthquake 4 km SE of San Ramon, CA. This is part of that ongoing earthquake swarm that started around Thanksgiving. Did you feel it? Report it! earthquake.usgs.gov/earthquakes/...

Here is the latest tsunami information for the M7.6 earthquake that just struck offshore northern Japan. The warnings are for waves up to 3 m, but the highest waves measured so far are <0.5 m. It is still possible for larger waves to arrive. 1/2 www.jma.go.jp/bosai/map.ht... ⚒️ 🧪

M 7.6 earthquake 73 km ENE of Misawa, Japan earthquake.usgs.gov/earthquakes/...

Yesterday, a M7.0 earthquake struck the Alaska-Canada border, directly beneath the Hubbard Glacier. Aftershocks reveal an unmapped fault in this already complex area. Read our post for more, & also: What happens when a fault offsets a glacier? Is the glacier named after one of my ancestors? ⚒️ 🧪

A M5.8 earthquake struck NW China today - an aftershock of the 2024 M7 Wushi earthquake. Although slip in the M7 mainshock did not reach the surface, a M5.7 aftershock a week later produced a remarkable surface scarp. Did the latest M5.8 do the same thing? We're waiting for data to find out. ⚒️ 🧪

M3.4 earthquake, Lancashire UK, at 23.23 UTC on 3 December 2025. Recorded in Nottingham using (from top) 'slinky', horizontal pendulum, and LEGO school seismometers #earthquake ⚒️ #geology 🦕 earthquake.usgs.gov/earthquakes/...

Understanding earthquake magnitude is simple. I don’t know why everyone is so confused 🤪

They certainly didn't chicken out! I'll see myself out. 🧪⚒️ #ak #alaska #earthquake #chickens #footage #AEC

An excellent visualization of the subduction zone up here and the location of the earthquake. Thank you for sharing @judithgeology.bsky.social! 🧪⚒️ #earthquake #alaska

⚒️ 🧪 This morning, a M6 earthquake struck at ~70 km depth near Anchorage, Alaska. Earthquakes are a regular part of life here: this is a subduction zone, with earthquakes deepening east to west. M6 earthquakes fall well within the range of "normal". USGS page: earthquake.usgs.gov/earthquakes/...

🌟OPEN ACCESS🌟A Physics‐Based Study on the Correlation Between Fourier Amplitude Spectra and Deformations of a Caisson‐Type Quay Wall: To Illustrate the Utility of PSHA Based on Fourier Spectra for Assigning Seismic Actions for Geotechnical Structures #SRL ⚒️ pubs.geoscienceworld.org/ssa/srl/arti...

What should you do to prepare for earthquakes in Bangladesh — especially if you don’t live there anymore? I had the pleasure of chatting with Anil Wasif from BacharLorai Global, a nonprofit aimed at empowering Bangladeshis worldwide, about the recent quake, seismic hazards, and how to do better.

Some footage from Bangladesh, post M5.5 earthquake. This is probably lateral spreading and slumping associated with earthquake-triggered liquefaction. Liquefaction is a huge hazard in Bangladesh, because so many people live in low-lying areas on saturated sediments. ⚒️ 🧪

Hopefully, if this does come to pass, any new construction will take seismic risk into consideration. Tehran is an earthquake disaster waiting to happen. Retrofitting old buildings is much harder than building new ones that are more resilient.

A M5.5 earthquake killed at least ten people in Bangladesh today. What made this moderate event so deadly? And what do we know about seismic hazards in the country? ⚒️ 🧪 earthquakeinsights.substack.com/p/bangladesh...

Earthquake Insights is making *almost* $20k a year - which is simultaneously more than I ever thought it would make, and not nearly enough to raise a family. 1/5

Throwback to International Geophysical Year, 1957-1958, when WHOI leased the USCG cutter Yamacraw for acoustic studies of the N. Atlantic & Mediterranean. After the last logs were recorded, scientists & crew gathered below deck for a jam session. Let's hope the banjo didn't influence their data!

The underwater seismometer network is so great, as evidenced from yesterday's EQ off-Tohoku. Reposting unofficial visualization by x.com/kotoho76/sta...

⚒️ 🧪 A M6.8 earthquake struck offshore Japan today - another large earthquake from the subduction zone that produced two recent great earthquakes. The earthquake was preceded by a "cascade up": foreshocks progressively increasing in maximum magnitude. What do we know? What might happen next?

Fellow seismologists, we're going to get a lot of mileage out of the latest @xkcd.com

Halloween costumes to scare scientists (by @twisteddoodles.bsky.social) 🧪

⚒️ 🧪 Today, Science released a special issue about the M7.7 earthquake that struck Myanmar in March. We were invited to write a perspective about the four research papers in the special issue. Find our post, including the text of our perspective, here:

⚒️ 🧪 Western Türkiye was struck by a M6 earthquake today: a triggered event, in a larger sequence that started in August with a M6.1. Both events were damaging, and the sequence raises questions about earthquake triggering, and what to expect. earthquakeinsights.substack.com/p/m60-earthq...

A Mw6.0 struck minutes ago Sındırgı, #Turkey. Was a strong shake with the suggestion of the USG an intensity of MMI VIII #EARTHQUAKE #TERREMOTO

🚨 Are you ready to ShakeOut? 🚨 This Thursday, October 16 is the the @shakeout.bsky.social, the world’s largest earthquake drill. Join millions of people worldwide as we practice the recommended safety action - Drop, Cover, and Hold on. Register at www.shakeout.org

⚒️ 🧪 A M5.7 earthquake shook the island of Cebu in the Philippines today - an aftershock of the deadly M6.9 on September 30th. Although the mainshock was strike-slip, this aftershock was a thrust - consistent with mapping of this newly discovered fault based on field studies and satellite imagery.

October 10th was marked by two M7+ earthquakes on the same day - 14,000 km apart! How unusual is that? We crunch some numbers. Also: what’s going on in the Drake Passage? 2025 has seen three mid-M7 earthquakes there, after decades of relative seismic silence. What can the limited data tell us? ⚒️ 🧪

It was a pleasure to contribute to this article, which talks about how AI contributes to seismology - indeed, we have seen tremendous progress in the use of machine learning to detect small events. 1/

Seismic stations across North America detected the earthquake waves from the M7.4 earthquake in the Philippines. 🧪 ds.iris.edu/spud/gmv

#EarthquakeReport for M 7.6 #Earthquake offshore of #Chile #Argentina #Antactica left-lateral (?) strike-slip earthquake mechanism in same location as 22 Aug '25 M7.5 earthquake: earthjay.com?p=12404 earthquake.usgs.gov/earthquakes/...

M 7.6 earthquake in the Drake Passage earthquake.usgs.gov/earthquakes/...

Magnitude 7.6 Strike-slip #earthquake in the Drake Passage (between Patagonia and Antarctica) about 40 minutes ago (2025-10-10Z20:29) Signal here on station GT.PLCA (Paso Flores, Argentina) earthquake.usgs.gov/earthquakes/...

M7.6 earthquake, Drake Passage, at 20.29 UTC on 10 October 2025. Recorded in Nottingham using (top to bottom) slinky, horizontal pendulum and @LEGO_Group school seismometers #earthquake ⚒️ #geology 🦕 earthquake.usgs.gov/earthquakes/...

M7.4 just struck the coast of the #Philippines at a depth of 58.1km according to the USGS. The #earthquake shown occurred on the western margin of the Philippine Trench, where the Philippine oceanic plate begins its subduction beneath the Mindanao microplate.

PRELIMINARY!!! M7.4 just struck the Philippines. earthquake.usgs.gov/earthquakes/...

I'm running for something! The world is a complicated and increasingly scary place. Decisions made at the local level will have real impacts. That's why I'm running for a seat on the Tompkins County Legislature. If you can afford to pitch in, I'd really appreciate your support.

Hello!!! Does anyone have the same issue as me to try to download data from the GCMT? It’s showing Proxy Error on the website. 😭😭😭😭

Hello!!! Does anyone have the same issue as me to try to download data from the GCMT? It’s showing Proxy Error on the website. 😭😭😭😭

Y’all folks! Does anybody know what’s happening with GCMT??? Shows Proxy Error. OMG!!

Meet SynDepth, the NEIC’s high-frequency teleseismic waveform modeling approach for determining source depth. #SRL ⚒️ pubs.geoscienceworld.org/ssa/srl/arti...

Y’all folks! Does anybody know what’s happening with GCMT??? Shows Proxy Error. OMG!!

A M5.0 earthquake struck below the Sea of Marmara (Türkiye) yesterday, a little west of April's M6.2. Was this an aftershock? What does it mean for hazard? We have added a map and short discussion to our previous post, and removed the paywall. ⚒️ 🧪 earthquakeinsights.substack.com/p/m62-earthq...