The San Ramon earthquake swarm ramping up this evening with a M4.0 and couple of M3.8’s. Busy little swarm. Did you feel it? Report it? earthquake.usgs.gov/earthquakes/...

#AGU25 is a wrap! So many inspiring and thought-provoking posters and presentations. A meeting like this is not only about scientific excellence but also about new and old connections, science communication and collaboration!

Glad to have made it to #AGU25 in NOLA! If you are here don't miss our group's and friends' presentations today. In poster sessions: "Model-order reduction applied to rate-and-state friction slow slip cycle models: Uncovering the physics driving slow-slip events using scientific machine learning"

Big, big congratulations to Dr. Aniko Wirp! Aniko defended her thesis "Modeling of Large Megathrust Earthquakes and Tsunami Generation using High-performance Computing“, including chapters on 3D linked subduction - dynamic rupture - tsunami - inundation modeling, large earthquake scenarios for the

Not sure yet where to start your #AGU25? Join us Monday 10am for a poster walkthrough in Session NH11B “Advancing Solid Earth Hazard Assessment Using Integrated Digital Twin Approaches” with 2 minute pitched of invited presentations by @mcslabuiuc.bsky.social, Omar Ghattas, & Chiara Montagna!

Huge Congratulations to Phd Student Jeena Yun for having two companion papers published in JGR Solid Earth agupubs.onlinelibrary.wiley.com/doi/10.1029/... and agupubs.onlinelibrary.wiley.com/doi/10.1029/...! In the first paper she explores the role of heterogeneous friction and stress in controlling

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/...

“Scripps researcher wins Gordon Bell Prize for real-time tsunami forecasting”, thanks for the interview Times of San Diego! timesofsandiego.com/tech/2025/11...

Congratulations to Team Cascadia (featuring CRESCENT-affiliated Dr. Alice-Agnes Gabriel) who've been awarded the prestigious Gordon Bell Prize in high-performance computing for their billion-parameter Cascadia Subduction Zone tsunami model using the world’s fastest supercomputer, El Capitan!

The team is developing a real-time tsunami forecasting system using an advanced digital twin framework that reduces what would normally require 50 years of supercomputing time to less than a second—a breakthrough that could transform early warnings for coastal communities.

🏅This Scripps Oceanography seismologist & a team of scientists from @utaustin.bsky.social & the Lawrence Livermore National Laboratory just won the Nobel Prize of supercomputing! 💻⚡ Congrats to @inseismoland.bsky.social, who earned the @acm.org Gordon Bell Prize! 🧵⬇️

It still feels so unreal! Yesterday, we were awarded the "Nobel Prize" of Supercomputing, the ACM Gordon Bell Prize at #SC25 for our paper “Real-Time Bayesian Inference at Extreme Scale: A Digital Twin for Tsunami Early Warning Applied to the Cascadia Subduction Zone”: dl.acm.org/doi/full/10....

Thank you to the HPCwire readers for the “Best Use of HPC in Physical Sciences” award!

Great to meet up with colleagues from Statewide California Earthquake Center (SCEC)’s research computing team at #SC25, Philip Maechling and Scott Callaghan, who support much of the computational infrastructure behind California earthquake research.

A great start to #SC25, our team received the 2025 Hyperion Research #HPC Innovation Excellence Award for advancing real-time tsunami early warning on the world’s fastest supercomputers.

Heading to #SC25 where our “Team Cascadia” presents the digital-twin #HPC framework integrating Bayesian inference at extreme scale towards real-time, physics-based tsunami early warning that earned us a place among this year’s ACM Gordon Bell Prize finalists. All presentations:

Nice story in the Seismological Society of America (SSA) News on the Paul Andrew Spudich Fund supporting Jeena Yun and Baoning Wu’s travel to Japan, to attend the slow-to-fast workshop. I enjoyed the featured “happy” Easter egg in Spudich & Frazer (1984). www.seismosoc.org/news/paul-an...

🌍 Simulating centuries of #earthquakes: the #Tandem code brings seismic cycles to #supercomputers @inseismoland.bsky.social explains how this code is advancing our understanding of earthquake physics and supporting the path toward exascale-ready Earth simulations 📹 youtu.be/DbMi7GL4zA8

Reconstructing fault surfaces from volumetric data is a longstanding challenge in geosciences. In this G3 paper led by Anthony Jourdon and Dave May (with Jorge Nicolas Hayek Valencia, and myself) we present a novel method that converts volumetric shear‐zone fields from 3D long‐term geodynamic...

"At the Shallow Frontier: Faulting, Deformation, and Tsunamigenesis in Cascadia" - Save the date! CRESCENT DET Topical Workshop on May 28 & 29, 2026 at the University of Oregon in Eugene cascadiaquakes.org/2025/01/20/d...

Do Coupled Megathrusts Rupture? In our new preprint, Bar Oryan and I present the first global analysis of the relationship between kinematic geodetic coupling and earthquake slip models across 12 subduction zones and 61 megathrust earthquakes. eartharxiv.org/repository/v...

Join us as a PostDoc! Green Foundation Postdoctoral Appointments in Geophysics Application Deadline: Sunday, Nov 9, 2025 at 11:59pm (Pacific Time) Further Details: igpp.ucsd.edu/about/green-... Apply here: apol-recruit.ucsd.edu/JPF04363

Preprint Alert! In a true team effort we ask: could aspects of the Myanmar earthquake have been predicted? T. Ulrich, X. Zou, M. Marchandon, N. Schliwa, F. Tan, A.-A. Gabriel, W. Fan, P. Shearer, M. Thant, T. Zin Htet Tin, E. Lindsey, Y. Fialko: www.researchsquare.com/article/rs-7...

Grateful to the organizers of the first Artificial Intelligence and Digital Twins for Earth Systems workshop (AIDT4ES, aidt4es.usacm.org) for the invitation to deliver a keynote talk. I enjoyed the discussion and interesting talks, as well as to connect with collaborators, colleagues, & friends :)

New JGR paper led by Zihua Niu! Evolving off-fault brittle damage alters elastic moduli between 3D fault step-overs, enabling dynamic rupture to cascade onto neighboring faults with rheology-dependent delay times and radiates isotropic high-frequency waves. doi.org/10.1029/2025...

Awesome start to the NNW-MTMOD meeting on fault dynamics and seismic hazard in St Arnaud. Also Captin Underpants on white board (why?)

Can’t every week be a hackathon week? Thanks to all Tandem developers for a productive and inspiring week, collaborative coding, bug fixing, proposal and paper writing, and inspiring views included. Grateful to @scrippsocean.bsky.social IGPP Green Foundation, and Quakeworx for the support and to the

Great to speak about how last week's tsunami impacted San Diego, just half a foot at La Jolla Shores (and yes, I’ll be keeping a "camera-ready jacket" in my office from now on). Now is a good moment to review tsunami evacuation routes and flood zones in your area! fox5sandiego.com/news/local-n...

Looks like a small swarm in the Fontana trend. This M4.2 had a few foreshcoks including a M3.0. The Fontana trend is a NE-striking lineation of earthquakes under the sediments of the San Bernardino Vslley. We believe it is one of the left-lateral striking faults that are south of the San Gabriels.

Did you feel the M4.4 earthquake near Muscoy, CA, a few minutes ago? The ShakeAlert earthquake early warning system was activated. ShakeAlert estimated the magnitude at M4.7, which meets the criteria for issuing alerts to cell phones in the area near the earthquake.

⚠️ Tsunamis can be a series of powerful surges capable of creating dangerous currents for hours. Stay alert and keep away from the beach and shoreline until officials give the all-clear. 🌏 USGS Earthquake information: on.doi.gov/4faXyBW 🌊 NOAA Tsunami information: bit.ly/49qPWZ5

"This was the largest earthquake since 2011, the sixth largest on record globally," said Alice Gabriel (@inseismoland.bsky.social), a seismologist with @igpp.bsky.social at Scripps Oceanography. "The first tsunami wave reached La Jolla Shores around 1:45 a.m., registering less than half a foot."

🚨 Tsunami Update 🚨 Last night's #tsunami advisory following a magnitude 8.8 earthquake off Russia's Kamchatka Peninsula has been lifted, according to the U.S. Geological Survey. 🧵⬇️ Image: Epicenter and shaking contours of the magnitude 8.8 Kamchatka earthquake (USGS)

Further update as of ~9:20pm Pacific Time on 7/29: There has been a *localized* upgrade to Tsunami Warning for segment of NorCal coast due to potential for <6 ft inundation near Crescent City. Rest of U.S./Canada West Coast remain under (lesser) Advisory. tsunami.gov/events/P...

⚒️ 🧪 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.

Part of Northern California (from the CA/OR border to Cape Mendicino) is now under a Tsunami Warning. The rest of California remains under a Tsunami Advisory. www.tsunami.gov

The US west coast from the Cal/Mexico border to Cape Mendocino is now under a tsunami “Advisory”, the middle level of alerts, which means strong currents are expected during this night that can be dangerous to those in/near the ocean & beach Remember, tsunami are not a single wave but multiple waves

The seismic waves from the M8.8 earthquake off the coast of Russia are passing under us here in California. They are too small for humans to feel but can still be detected by seismometers www.iris.edu/app/station_...

A tsunami advisory is in effect for parts of the Pacific Northwest. Please visit tsunami.gov for additional information.

0045Z, 7/30: A #TsunamiWarning is now in effect for #Hawaii. ETA 7:17 PM HST tonight. Urgent action should be taken to protect lives and property along coastlines! #Tsunami

as of right now, except for some very outlying parts of alaska, it’s a watch not a warning in the US.

Magnitude 8.7 #earthquake in Kamchatka, following a M7.4 last week - may be largest earthquake since 2011, 8th largest on record globally, #tsunami warning in place for US west coast and Canada - the historic 1952 M9 closely caused a destructive tsunami across the Pacific

A magnitude 8.7 earthquake has just occurred off Russia's Kamchatka Peninsula, just a bit over a week after a magnitude 7.4 earthquake in the same area. Multiple tsunami warnings and advisories are in place. Please check www.tsunami.gov for the latest information.

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What governs whether the next big Cascadia earthquake will rupture the entire margin or stop partway? In our @weareseismica.bsky.social paper led by Jonatan Glehman, with Thomas Ulrich, Marlon Ramos, Yihe Huang, & Eric Lindsey, we link geodetic slip deficit models to 3D dynamic rupture simulations..

While this community effort was published already some time ago, it's worth highlighting if you have not seen it yet. Led by Valère Lambert this paper presents benchmark comparisons for simulations of fluid-induced aseismic slip. agupubs.onlinelibrary.wiley.com/doi/10.1029/...

How do faults slip? Join our AGU Session T009 - From fault blocks to exaflops: Earthquake slip from grain scale to plate boundaries on multiscale earthquake processes! Invited Speakers: Camilla Cattania, Elisa Tinti, Mohamed Abdelmeguid. agu.confex.com/agu/agu25/pr...

A paper about training the next generation of seismologists! Led by the amazing Marine Denolle & SCOPED project, we describe lessons learned from training hundreds of participants in HPC and cloud computing for earthquake simulations, machine learning & more pubs.geoscienceworld.org/ssa/srl/arti...