Caltech Seismo Lab

We're excited to announce that we're expanding our presence across various platforms to bring you the latest Seismo Lab and earthquake info straight from the source!

For the quickest updates and earthquake insights, make sure to follow us on:
🔹 X (Live SCSN EQ Tweets): @CaltechQuake [buff.ly/49ziG0O]
🔹 X (Caltech Seismo Lab): @CaltechSeismo [buff.ly/3I5ZADA]
🔹 Facebook: Caltech Seismological Laboratory [buff.ly/3uGrK58]
🔹 Instagram: @caltechseismo [buff.ly/3uGrJy6]
🔹 LinkedIn: Caltech Seismological Laboratory [buff.ly/3uGrKlE]
🔹 BlueSky: @caltechseismo.bsky.social [buff.ly/3uGrJOC]

We're working on some new posts and announcements so make sure to follow us on your preferred platform(s) and say hi sometime! #EarthquakeAlerts #Seismology #CaltechSeismologicalLab

Weekly Earthquake Stats: 01 Nov 2026 - 07 Nov 2026. There were 318 events this week ranging from M -0.31 to 4.89. Check out our weekly playback map and visit scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo

#FieldPhotoFriday Even after it has passed, the summer heat can still take its toll on our equipment! One of the SCSN stations near Agua Caliente recently needed a new battery to replace one that was less than 2 years old. Surface temperatures over 150° F have been logged at this site! That kind of heat for months on end is brutal on tech. Great work as always keeping the seismic network running! #ShakeAlert #CalOES

Meet Hao Zhang, a Seismo Lab Post-Doc who is an observational geophysicist specializing in DAS and multi-modal geophysical data! #SeismoLabSpotlight #Caltech Visit his personal website: zhsess.github.io

Last month, the Caltech Seismo Lab celebrated the 90th birthday of Hiroo Kanamori, Professor, Emeritus, and former director of the Seismo Lab. Also, from 1991 to 2021, the most prolific and highly cited seismologist for a 30 year time span.

Dr. Kanamori’s work has helped shape modern seismology, from developing the moment magnitude scale with Tom Hanks (the scientist, not actor) to advancing our understanding of large earthquakes and seismic hazard mitigation. During his leadership, the Southern California Seismic Network continued to grow and strengthen.

We’re grateful for his continuing work and lasting contributions to the field and to the Seismo Lab. For example, at his party with faculty, he talked about his ongoing research on the '25 Mw 8.8 Kamchatka earthquake, where he unexpectedly found a really high bulk Q of the Earth!

Happy 90th birthday, Dr. Kanamori! Aka Kanamori Sensei. #Caltech