Along-arc variations, specifically in long-term plate convergence rates/loading, too, significantly modulate earthquake evolution, stress drop, thrust vs oblique faulting & slip and lead to spontaneous arrest south of the hypocenter and in the critically lower prestressed North

We vary the yield strength of near-trench and subducted sediments resulting in distinctly different distributions of near-trench slip, wedge damage and rupture speed but indistinguishable teleseismic and geodetic synthetics, earthquake kinematics & radiation efficiency, but ...

.. when we evaluate dynamic-rupture-tsunami scenarios against geodetic tsunami observations, synthetics are sensitive to both fault slip at the trench and off-fault plastic deformation. While all scenarios capture the pronounced two-peak characteristic of the first tsunami wave..

free to read link rdcu.be/cE9SN and #OA preprint EarthArXiv eartharxiv.org/repository/vie…

Observations from Japan on why the far-field tsunami was likely triggered by air-sea coupling, not the standard shallow-water wave propagation from the source. mainichi.jp/english/articl…

Now we are able to issue earthquake alerts, the challenge remains to help people respond and protect themselves. Great review from Dare Baldwin. Don't forget to download MyShake! theconversation.com/shakealert-ear… via The Conversation U.S.

Mountains look like they stand stoic and still, but new research reveals that mountains are, in fact, moving all the time, swaying gently from the seismic rhythms coursing through the earth upon which they rest. eos.org/articles/mount…

bit.ly/twMeninasCienc… No #DiaInternacionalDasMeninasEMulheresNaCiência destacamos a reportagem "Elas também são cientistas” que mostra como iniciativas que procuram aproximar meninas da ciência se readaptaram na pandemia. #ciência #science #educação #meninasnaciência

I just felt this in San Francisco! M3.3 in San Leandro, CA #sanleandro #earthquake

Same again, not felt nearby. At least we have a sensitive instrument in the house to experience it vicariously through

Subduction-zone mega-thrust earthquakes, the most powerful earthquakes, can produce tsunamis through a variety of structures that are missed by simple models. (THREAD) #TsunamiPreparednessWeek iris.edu/hq/inclass/ani…

Fluids control #earthquakes in subduction zones - but how? We vary pore fluid pressure gradients and model 3D megathrust earthquake dynamics in our🆕paper led by Betsy Madden Elizabeth (Betsy) Madden. We find that fluid pressure is likely very high & controls (1/3) agupubs.onlinelibrary.wiley.com/doi/10.1029/20…

Just published!! The State of Pore Fluid Pressure and 3‐D Megathrust Earthquake Dynamics agupubs.onlinelibrary.wiley.com/doi/10.1029/20…

UPDATE! - #DidYouKnow the #ShakeAlert seismic network in CA, OR, & WA is now ➡️78% complete? 🎉Our goal is 1,675 stations. See the updated Berkeley Seismo Lab animation showing the build-out over time. California Geological Survey California Governor's Office of Emergency Services Caltech Seismo Lab University of Washington University of Oregon WA Emergency Management OregonOEM PNSN Washington State Dept. of Natural Resources

The making of our Moon... A new NASA simulation shows the Moon may have formed much faster than previously thought (over a matter of hours!) following the collision of a Mars-sized object with Earth. Learn more about this lunar origin story: go.nasa.gov/3UYWZ3D

.ShakeOut day is on 10/20. Have you signed up to receive #ShakeAlert-powered alerts on your cell phone? Learn more here: usgs.gov/faqs/how-do-i-… California Geological Survey California Department of Conservation USGS Earthquakes California Governor's Office of Emergency Services FEMA Region 9 FEMA Region 10

M 4.4 - 16 km ESE of Lacomb, Oregon PAGER - GREEN ShakeMap - IV DYFI? - V Time 2022-10-07 12:52:36 UTC 2022-10-07 12:52:36 UTC at epicenter Location 44.540°N 122.551°W Depth 13.17 km (8.18 mi) ift.tt/UlHX0ZV

October 8, 1963, seismographs register tremors & fissures open on the slopes of Monte Toc. Technicians decide to lower water levels in the #Vajont reservoir, unintentionally destabilizing further the mountain... tinyurl.com/y4yj8n98

Just felt this! #earthquake