In a new #BSSA paper, scientists consider why Alaska seismic station NP.ARTY experiences higher ground acceleration than other nearby stations. They found that local topography and shallow low-velocity material play important roles in amplification. ⚒️
pubs.geoscienceworld.org/ssa/bssa/art...
🌟OPEN ACCESS🌟 Although Australia isn’t known for high seismicity, it does experience moderate to large earthquakes. A new #BSSA paper presents a way to resolve source parameters for well-recorded post-1994 earthquakes within Australia. ⚒️
pubs.geoscienceworld.org/ssa/bssa/art...
How might a sudden change in slab dip affect rupture propagation? A new #SRL paper proposes that in the case of megathrusts that occur south of the Alaska Peninsula, such as change may have acted as a barrier for two recent quakes. ⚒️
pubs.geoscienceworld.org/ssa/srl/arti...
Parallel Seismic Data Processing Performance with Cloud‐Based Storage #SRL
What does cloud computing really mean with respect to seismology?
pubs.geoscienceworld.org/ssa/srl/arti...
#ComunidadIG Mejoras y optimización de redes de vigilancia sísmica y geodésica en el volcán #SierraNegra.
Más información en el siguiente enlace:
👉 igepn.short.gy/Oaf4Nj
A summary of our recent fieldwork in Galapagos (which came out when I was on strike last week). With @hernarado.bsky.social @volcanodr.bsky.social @earthscope.org
Screen shot of earthquake map from the USGS NEIC website
M4.3 shallow #earthquake near Berkeley, CA a few hours ago, strike slip mechanism, possibly on the Hayward Fault Zone. ⚒️🧪
earthquake.usgs.gov/earthquakes/...
Recording of the earthquake. It looks like a wiggle with a purple dot over the top. The different colored dots indicate different earthquakes
Zoomed in recording of the earthquake shown in the last image. It looks like a wiggly line going across the page
Information about the 4 earthquakes recorded by the seismic station. A M2.3 in Northern California, a M5.0 near the Mariana islands and the M4.3.
Map showing the location of the seismic station near Hollister.
M4.3 earthquake near Berkeley as recorded by a seismic station near Hollister, CA.
La ceniza volcánica es roca pulverizada que puede afectar la salud humana, la vegetación y los animales.
😷 Usa mascarilla y gafas
🌿 Sacude las hojas
🐾 Protege a tus mascotas
La prevención empieza con el conocimiento.
📚 alertasecuador.gob.ec/volcan
📚 igepn.edu.ec/mapas/amenaz...
Taxi-H2OTaxi-Lancha-H2OTaxi-Taxi-H2OTaxi-Bus-Plane. Back to Quito after a successful 2 weeks of geodetic & seismic research w/ @igepnecuador.bsky.social @andyfbell.bsky.social @hernarado.bsky.social @earthscope.org @ Sierra Negra volcano.
Improving the Transportability of a Deep Learning Denoising Model Using Transfer Learning Techniques #SRL ⚒️
How can transportability of deep learning denoising methods be improved?
pubs.geoscienceworld.org/ssa/srl/arti...
Sierra Negra. With @volcanodr.bsky.social @hernarado.bsky.social @earthscope.org
LAB2022: A New Nodal Seismic Array Spanning the Los Angeles Basin #SRL ⚒️
Interested in seismic velocity changes of the LA Basin? Check out this new paper!
pubs.geoscienceworld.org/ssa/srl/arti...
Is the recent 2022 magnitude 6.4 earthquake that struck near Ferndale, California, a repeat of a previous event that occurred in the same region, 47 years prior? Find out in this new #SRL paper ⚒️
pubs.geoscienceworld.org/ssa/srl/arti...
Figure from Macinnes et al. conpared to map of today’s Kamchatka earthquake by Jascha Polet.
Another quick comparison of the 1952 #Kamchatka #earthquake from MacInnes et al. (2010) with today’s M8.8 event. The aftershock areas are similar, as well as one region of foreshocks. The updated USGS rupture model has a max slip of 10m versus 12m for 1952, with SW rupture direction. 🧪⚒️
Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.3 - ALASKA - 2025-07-16 20:37:39 (UTC)
Plane striking N343 (NNW-SSE) shown.
Rupture direction to the South-East constrained by nearby stations (quite opposite to the USGS result).
Thanks to seismic records through IRIS
“The village’s 300 inhabitants had to leave their homes on 19 May after geologists monitoring the area warned that the glacier appeared unstable. Now many of them may never be able to return.
Climate change is causing the glaciers – frozen rivers of ice – to melt faster and faster..”
⚒️ 🧪
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...
Pretty convinced that our work at Saint Louis University on the Cauca Cluster earthquakes has developed to the point we can probably make a fairly decisive argument on the cause or causes of the intermediate depth earthquakes....
Maybe we pitch it at AGU this December, if US science still exists?
There's a great paper by Dave Hill (former USGS seismologist) about the Mammoth crisis at link.springer.com/chapter/10.1...) He spent much of his career running the Long Valley Observatory (now CalVO) and working to repair trust in the USGS in Mammoth.
PhD Timeline xkcd.com/3081
Definitely "full screen" the last two images. ⚒️
DAS meets the Moho! New paper in Science Advances w/ Zhongwen Zhan. We developed a method for finding Moho reflections in DAS data. One event can yield 10s of km of fine-scale Moho depth measurements. We applied it to dozens of SoCal events and learned a lot about the Garlock, Coso, and more.
Hi Seismo-Bluesky! I decided to test a pipeline with SeisBench, PyOcto, NonLinLoc, and HypoDD on the Santorini sequence. The level of activity (>4,500 events) is truly stunning! There are repeated bursts migrating backwards and forwards, spreading outwards from a narrow, almost linear channel.
A line graph showing atmospheric CO2 levels at Mauna Loa Observatory from 1955 to 2025. The y-axis represents CO2 mole fraction in parts per million (ppm), ranging from 320 to 420 ppm, while the x-axis is years.
The most iconic figure in the environmental sciences is the Keeling Curve, the CO₂ record from Mauna Loa, Hawaii.
@noaa.gov had a wonderful site where you could visualize and download these data, and now it's just gone. These data belong to us and we should not let this happen!
Come ON. You fight unconstitutional moves even if the target is unpopular because the next target will be for something even bigger and more important. And because many innocent people will die.
🚨New paper!
The second paper from @myfaultmanu.bsky.social's PhD thesis investigates the active tectonic deformation across the Western Anatolian Extensional Province in Türkiye using Sentinel-1 derived InSAR velocities.⚒️🧪🪨🛰️
OA paper here: agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Example of 3D pore structures extracted from μCT images. The image show a complex pattern of connected spaces where CO2 could be trapped
Thinking of using (or just curious to explore potentiality and limitations) X-ray micro computed tomography (μCT)? This simple intro could be a good starting point (Not for experts 🙂)
#Sedimentologika
Free access here doi.org/10.57035/jou...
@sedimentologika.bsky.social
@RyanPayton @AndrewKingdon
Comparison between two interferometric correlation images, one pre-event (24 days before, left) and one spanning (right) the rockslide and tsunami in Dickson Fjord
(For my part, I processed InSAR data over Dickson Fjord and was able to independently detect decorrelation consistent with the expected tsunami run-up around the edges of the fjord. I did not find any obvious pre-event signal on the rocky peak, but it certainly did decorrelate after it fell.)
I am so excited for everyone to see this amazing story about the mysterious seismic signal, mega-tsunami, giant rockslide, and perpetual wave machine of a fjord!
www.theguardian.com/environment/...
