Baoning Wu

Slow Slip in the Cascadia Subduction Zone: Thinking Outside the Plane Large episodic slow slip events in Cascadia can be modeled as stick-slip at the interface between a viscoelastic layer above an elastic layer The model is motivated by (a) slip in an event < plat...

Slow Slip in the Cascadia Subduction Zone: Thinking Outside the Plane - Sammis - 2025 - Journal of Geophysical Research: Solid Earth - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/full/10....

Could drought explain why the southern San Andreas fault has been quiet for more than 300 years? A new #SRL study explores this question, and more. ⚒️

pubs.geoscienceworld.org/ssa/srl/arti...

YouTube video by 2025 Kamchatka Earthquake & Tsunami Archive MASSIVE Tsunami Hits Pionerskaya Bay, Kamchatka, Russia (HQ)

Tsunami video allegedly taken at Pionerskaya bay after the M8.8 Kamchatka #earthquake. HOLY SHIT! This guy and his dog are unbelievably lucky. 🧪⚒️ #geology

youtube.com/shorts/LhFQ2...

Japanese GSI published the InSAR result of ALOS-2. It may be helpful for the interpretation.
www.gsi.go.jp/cais/topic20...

Screen grab of a wrapped interferogram over southern Kamchatka

First Sentinel-1 interferogram from southern Kamchatka! Lots of what I am assuming are tropospheric signals (e.g. over the volcanoes), but I also see long-wavelength fringes that change in azimuth from the NE (~shore-perpendicular) to the SW (~shore-parallel). Optimistic it could be the earthquake!

Literature regarding the 1923 and 1952 #Kamchatka #earthquakes are available at these links:

1923-02-03: www.isc.ac.uk/cgi-bin/Form...

1952-11-04: www.isc.ac.uk/cgi-bin/Form...

Seems that the 2025 event re-ruptured the 1952 area (aftershocks + finite fault). The 2025 didn't rupture across the possible segment boundary; rather, it nucleated near the segment boundary (so did all the foreshocks).
pku-geophysics-source.group/htmls/202507...

Quickly plot the rough location of the 2025 Mw8.8 Kamchatka earthquake (USGS hypocenter) on Figure 1 in Pinegina et al. (2018). I wonder if the 2025 event re-rupture the northern rupture of the 1952 Mw9.0 event? Also, did the 2025 event rupture across the "segment boundary" at ~N53?

rdcu.be/eyrre

Shallow Tectonic Tremors Reveal the Beginning of the Slab Window at the Chilean Triple Junction We detected ∼500 shallow tectonic tremors at the Chilean Triple Junction (CTJ), using nearly two continuous years of ocean bottom seismometers data A gap between tremors and fast seismicity is ob...

Azúa, K., Ide, S., Yano, S., Ruiz, S., Sugioka, H., Shiobara, H., et al. (2025). Shallow tectonic tremors reveal the beginning of the slab window at the Chilean triple junction. Geophysical Research Letters, 52, e2025GL115019. doi.org/10.1029/2025...

YouTube video by Sabin Civil Engineering The CRUEL Physics behind Tsunamis!

One of the best tsunami education I have seen video on YouTube. Very intuitive animation, especially the parts on wave shoaling and how waves breaks at the coast line.

youtube.com/watch?v=piH4...

Apparently surface rupture during the Myanmar 2025. I'm very surprised by the weak shaking along the rupture. I'm not sure if this is the main rupture (I would say no - nonetheless, VERY COOL). Author unknown, location Thazi (to be confirmed)

YouTube video by 2025 Sagaing Earthquake Archive First fault movement ever filmed. M7.9 surface rupture filmed near Thazi, Myanmar

I am speechless...
>> First fault movement ever filmed. M7.9 surface rupture filmed near Thazi, Myanmar
m.youtube.com/watch?v=77ub...

I am glad that I open Bluesky 30 mins before the seminar. Seems like an interesting talk.

If you are near the @scrippsocean.bsky.social in La Jolla, come by to the Ritter Memorial Fellowship Lecture tomorrow at 3 pm, I will be talking about the emergence of the German Maritime Observatory (Deutsche #Seewarte).

A radar interferogram covering 17.5 to 23.5 degrees north, in Myanmar. Tightly clustered fringes delimit the likely 2025 earthquake rupture zone.

The whole #MyanmarEarthquake rupture in one interferogram! This is three consecutive wide swath frames of ALOS-2 data, provided by JAXA through agreement with NASA. The line-of-sight (LOS) is ~perpendicular to fault strike, so most of what you see is vertical motion at bends and steps of the fault.

Seismicity map of the Myanmar area generated by Jascha Polet using GMT and a myriad of earthquake catalogs

A historical seismicity map shows several #earthquakes of similar size to today’s M7.7 in Myanmar occurred in the region in the early 20th century, but this section of the Sagaing fault probably hasn’t ruptured since 1839 🧪⚒️

Lacustrine Records of Past Seismic Shaking Reliable seismic hazard analysis builds upon a robust reconstruction of spatiotemporal rupture variability over multi-millennial timescales. Lacustrine sediment sequences can provide long and complete...

📢📢 Excited to announce that the #openaccess book on "Understanding Past #Earthquakes" is out now... 🤩

So proud to have been able to contribute to this by co-authoring the chapter on Lacustrine #Paleoseismology 👩‍🔬📕 Happy to finally see it come to live 🥳

Check it out by clicking the link below ⬇️

#EarthquakeReport for M7.6 #Earthquake #Sismo #Terremoto near #CaymanIsland

Left-lateral strike-slip earthquake along Swan Island fault

#Tsunami observation at Isla Mujeres

See 2020 report for tectonic background
earthjay.com?p=9322

earthquake.usgs.gov/earthquakes/...

Allison Cusick, MAS ’17, MS ’20, with citizen scientists. (Photo by Allison Cusick)

What began as a student project in 2016 from @scrippsocean.bsky.social alumna Allison Cusick has developed into a NASA-funded program (@fjordphyto.bsky.social) that trains tour vessel operators and “citizen scientists” to collect samples of phytoplankton in Antarctica. 🧊➡️ bit.ly/4gmsX3e

Walk and think around the campus until I see this.

Crustal Structure of the Hikurangi Subduction Zone Revealed by Four Decades of Onshore‐Offshore Seismic Data: Implications for the Dimensions and Slip Behavior of the Seismogenic Zone Four decades of controlled-source seismic data constrain a high-resolution, regional P-wave velocity model of the Hikurangi subduction zone Spatial variability in wavespeeds reflect the tectonic ...

Crustal Structure of the Hikurangi Subduction Zone Revealed by Four Decades of Onshore‐Offshore Seismic Data: Implications for the Dimensions and Slip Behavior of the Seismogenic Zone - Bassett - 2025 - Journal of Geophysical Research: Solid Earth agupubs.onlinelibrary.wiley.com/doi/10.1029/...

A map of Iceland with dots showing where polar bears have been found in Iceland after coming over from Greenland on icebergs. There are a lot of dots.

Since nobody asked, here is a map showing where polar bears have been found in Iceland after drifting over from Greenland on icebergs.

Miyazaki quake falls short of triggering Nankai Trough megaquake advisory Though Monday's temblor struck a similar area to one in August that sparked the first advisory, no such alert was issued.

The JMA panel acted quickly, deciding less than 3 hours after the earthquake not to issue an advisory. www.japantimes.co.jp/news/2025/01...

No words

Super helpful app recommendation for Watchduty App to track wildfires. They even have large and small animal shelter locations called out on the maps of fire locations, which scores points in my book.

Watch Duty - Wildfire Maps & Alerts Watch Duty, a 501(c)(3) nonprofit, alerts you of nearby wildfires and firefighting efforts in real-time.

An app for the folks in LA:

www.watchduty.org

📯Applications are now open for our internships for undergraduates (including community college students), graduate students, and recent graduates! Apply by Feb. 15 for these 11-week summer programs.

Details and applications 👇
https://loom.ly/rUXjFGo

Kīlauea is erupting again.

Our planet has been doing this since virtually the beginning, and I think it's beautiful.

🎥: USGS Volcanoes

Gemini & Physical World: Large Language Models Can Estimate the Intensity of Earthquake Shaking from Multi-Modal Social Media Posts Summary. This paper presents a novel approach to extract scientifically valuable information about Earth's physical phenomena from unconventional sources,

Interesting!

Gemini & Physical World: Large Language Models Can Estimate the Intensity of Earthquake Shaking from Multi-Modal Social Media Posts academic.oup.com/gji/article/...

Parallel dynamics of slow slips and fluid-induced seismic swarms - Nature Communications Migrating earthquake sequences from a wide range of tectonic contexts exhibit two distinct behaviors. One is linked to slow slip and characterized by elevated migration velocities and moments, and the...

Danré, P., De Barros, L., Cappa, F. et al. Parallel dynamics of slow slips and fluid-induced seismic swarms. Nat Commun 15, 8943 (2024). doi.org/10.1038/s414...