Caltech Seismological Laboratory
@caltechseismo.bsky.social
Caltech Seismological Laboratory | A focal point and source for earthquake science, discovery, and research in Southern California for over 100 years!
Today marks one year since the start of the devastating January 2025 fires in Southern California. Many people in the Seismo Lab and the greater Caltech community were impacted by these fires, especially the Eaton fire.
After the Fires
Hear from Caltech and JPL scientists and engineers who lend their expertise and answer questions from the local community. In this series, find out what they are learning, as they are learning it.
scienceexchange.caltech.edu
January 7, 2026 at 5:02 PM
Today marks one year since the start of the devastating January 2025 fires in Southern California. Many people in the Seismo Lab and the greater Caltech community were impacted by these fires, especially the Eaton fire.
Welcoming 2026 with seismic insights from the SCSN in 2025! From the Julian M5.2 to 2% less M<2 eqs and 74% less M4+ eqs than 2024! (2024 had A LOT of M4+) Lots of shaking in #SoCal as usual, so check out #2025earthquakes #SeismicReview and visit the Earthquakes Tab on www.scsn.org for more info!
January 6, 2026 at 9:00 PM
Welcoming 2026 with seismic insights from the SCSN in 2025! From the Julian M5.2 to 2% less M<2 eqs and 74% less M4+ eqs than 2024! (2024 had A LOT of M4+) Lots of shaking in #SoCal as usual, so check out #2025earthquakes #SeismicReview and visit the Earthquakes Tab on www.scsn.org for more info!
Happy New Year! Follow the Seismo Lab & SCSN for reliable eq info straight from the source.
X (EQ alerts): buff.ly/49ziG0O
X (Seismo Lab): buff.ly/3I5ZADA
Facebook: buff.ly/3uGrK58
Instagram: buff.ly/3uGrJy6
LinkedIn: buff.ly/3uGrKlE
Bluesky (EQ): buff.ly/CZS5vmM
Bluesky (Lab): buff.ly/3uGrJOC
X (EQ alerts): buff.ly/49ziG0O
X (Seismo Lab): buff.ly/3I5ZADA
Facebook: buff.ly/3uGrK58
Instagram: buff.ly/3uGrJy6
LinkedIn: buff.ly/3uGrKlE
Bluesky (EQ): buff.ly/CZS5vmM
Bluesky (Lab): buff.ly/3uGrJOC
Caltech Quake Bot (@CaltechQuake) on X
Results preliminary and subject to change upon review. Visit our website for more info. "AutoEQ" = Automated post. All others are manual posts by the SCSN.
buff.ly
January 5, 2026 at 9:00 PM
Happy New Year! Follow the Seismo Lab & SCSN for reliable eq info straight from the source.
X (EQ alerts): buff.ly/49ziG0O
X (Seismo Lab): buff.ly/3I5ZADA
Facebook: buff.ly/3uGrK58
Instagram: buff.ly/3uGrJy6
LinkedIn: buff.ly/3uGrKlE
Bluesky (EQ): buff.ly/CZS5vmM
Bluesky (Lab): buff.ly/3uGrJOC
X (EQ alerts): buff.ly/49ziG0O
X (Seismo Lab): buff.ly/3I5ZADA
Facebook: buff.ly/3uGrK58
Instagram: buff.ly/3uGrJy6
LinkedIn: buff.ly/3uGrKlE
Bluesky (EQ): buff.ly/CZS5vmM
Bluesky (Lab): buff.ly/3uGrJOC
Happy Holidays from the Caltech Seismological Laboratory and Southern California Seismic Network! We'll be back with more updates and content from around the lab after the New Year! #HappyHolidays2025
December 24, 2025 at 5:00 PM
Happy Holidays from the Caltech Seismological Laboratory and Southern California Seismic Network! We'll be back with more updates and content from around the lab after the New Year! #HappyHolidays2025
Meet Auden Reid-McLaughlin, a Seismo Lab Grad Student who uses seismology and continuum mechanics to study environmental phenomena, like glacial motion, debris flows, and slow slip! #SeismoLabSpotlight
December 23, 2025 at 7:00 PM
Meet Auden Reid-McLaughlin, a Seismo Lab Grad Student who uses seismology and continuum mechanics to study environmental phenomena, like glacial motion, debris flows, and slow slip! #SeismoLabSpotlight
Last week at #AGU25, the Seismo Lab and SCSN had a strong showing. From talks and posters to hallway conversations and new connections, it was a productive and energizing week for our team!
December 22, 2025 at 10:00 PM
Last week at #AGU25, the Seismo Lab and SCSN had a strong showing. From talks and posters to hallway conversations and new connections, it was a productive and energizing week for our team!
Weekly Earthquake Stats: 14 Dec 2025 - 20 Dec 2025. There were 354 events this week ranging from M -0.04 to 3.63. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
December 21, 2025 at 9:57 PM
Weekly Earthquake Stats: 14 Dec 2025 - 20 Dec 2025. There were 354 events this week ranging from M -0.04 to 3.63. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
This evening at 5pm Mo Hu is presenting: Influence of Subduction History and Mineral Deformation on Seismic Anisotropy in the Lower Mantle. They will be discussing what seismic anisotropy pattern in the lower mantle is and how to understand it with geodynamic computations!
December 18, 2025 at 2:34 PM
This evening at 5pm Mo Hu is presenting: Influence of Subduction History and Mineral Deformation on Seismic Anisotropy in the Lower Mantle. They will be discussing what seismic anisotropy pattern in the lower mantle is and how to understand it with geodynamic computations!
This morning at #AGU25 Mo Hu will be presenting: Constraints on LLSVP Properties from Boundary Morphology and Seismic Anisotropy. Where they discuss Global, spherical thermochemical convection computations to understand LLSVP boundary topography and seismic anisotropy patterns.
December 17, 2025 at 2:50 PM
This morning at #AGU25 Mo Hu will be presenting: Constraints on LLSVP Properties from Boundary Morphology and Seismic Anisotropy. Where they discuss Global, spherical thermochemical convection computations to understand LLSVP boundary topography and seismic anisotropy patterns.
This morning at AGU25 Zack Newman will be presenting his poster: Utilizing modern web, streaming, and social media tools to engage with and educate the public on earthquake hazards and preparedness. Discussing how the SCSN streams live data, and engages with the public after major eqs, and more!
December 16, 2025 at 1:51 PM
This morning at AGU25 Zack Newman will be presenting his poster: Utilizing modern web, streaming, and social media tools to engage with and educate the public on earthquake hazards and preparedness. Discussing how the SCSN streams live data, and engages with the public after major eqs, and more!
Later today at #AGU25 Jessie Saunders will present: Recent updates to the Attenuated Propagation of Local Earthquake Shaking (APPLES) ground-motion-based earthquake early warning algorithm for the U.S. ShakeAlert system.
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December 15, 2025 at 4:01 PM
Later today at #AGU25 Jessie Saunders will present: Recent updates to the Attenuated Propagation of Local Earthquake Shaking (APPLES) ground-motion-based earthquake early warning algorithm for the U.S. ShakeAlert system.
Today at #AGU25 Cijin Zhou is presenting: Expanding Nuclear Resonant Scattering Capabilities to Extreme Conditions: A New Laser Heating Diamond Anvil Cell System at 3-ID, APS. buff.ly/A8R5V5J
December 15, 2025 at 2:10 PM
Today at #AGU25 Cijin Zhou is presenting: Expanding Nuclear Resonant Scattering Capabilities to Extreme Conditions: A New Laser Heating Diamond Anvil Cell System at 3-ID, APS. buff.ly/A8R5V5J
We’re in New Orleans for #AGU25! Several folks from the Caltech Seismological Laboratory are attending this week.
Check back to see what they’re presenting and sharing throughout the meeting:
Check back to see what they’re presenting and sharing throughout the meeting:
AGU Annual Meeting | AGU25
AGU's annual meeting, the largest gathering of Earth and space scientists, convenes 25,000+ attendees from 100+ countries to share research and connect with friends and colleagues. Join us for AGU25…
buff.ly
December 15, 2025 at 2:00 PM
We’re in New Orleans for #AGU25! Several folks from the Caltech Seismological Laboratory are attending this week.
Check back to see what they’re presenting and sharing throughout the meeting:
Check back to see what they’re presenting and sharing throughout the meeting:
The Brinson Exploration Hub’s GLASS Project, co-led by researchers from Caltech's Seismo Lab and the JPL is deep in Antarctica for a major field campaign imaging glacier and grounding-line dynamics.
Follow the official updates here:
buff.ly/Vn3jlac
#GLASSProject #Antarctica #Caltech #JPL
Follow the official updates here:
buff.ly/Vn3jlac
#GLASSProject #Antarctica #Caltech #JPL
Field Notes
brinsonhub.caltech.edu
December 12, 2025 at 12:00 AM
The Brinson Exploration Hub’s GLASS Project, co-led by researchers from Caltech's Seismo Lab and the JPL is deep in Antarctica for a major field campaign imaging glacier and grounding-line dynamics.
Follow the official updates here:
buff.ly/Vn3jlac
#GLASSProject #Antarctica #Caltech #JPL
Follow the official updates here:
buff.ly/Vn3jlac
#GLASSProject #Antarctica #Caltech #JPL
✨The festive season has officially begun at the Seismo Lab! ✨
On Tuesday, we held our annual Tree Trimming event where we decorated our tree, created holiday crafts, played games, and enjoyed some breakfast treats.
Wishing everyone a joyful start to their festivities as well!
On Tuesday, we held our annual Tree Trimming event where we decorated our tree, created holiday crafts, played games, and enjoyed some breakfast treats.
Wishing everyone a joyful start to their festivities as well!
December 10, 2025 at 12:55 AM
✨The festive season has officially begun at the Seismo Lab! ✨
On Tuesday, we held our annual Tree Trimming event where we decorated our tree, created holiday crafts, played games, and enjoyed some breakfast treats.
Wishing everyone a joyful start to their festivities as well!
On Tuesday, we held our annual Tree Trimming event where we decorated our tree, created holiday crafts, played games, and enjoyed some breakfast treats.
Wishing everyone a joyful start to their festivities as well!
Weekly Earthquake Stats: 30 Nov 2025 - 06 Dec 2025. There were 293 events this week ranging from M -0.17 to 3.20. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
December 7, 2025 at 9:53 PM
Weekly Earthquake Stats: 30 Nov 2025 - 06 Dec 2025. There were 293 events this week ranging from M -0.17 to 3.20. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
Happy December! Throwback to some fieldwork in Idyllwild, where the pine trees around this station bring the winter atmosphere to California all year long! #FieldPhotoFriday
December 5, 2025 at 6:02 PM
Happy December! Throwback to some fieldwork in Idyllwild, where the pine trees around this station bring the winter atmosphere to California all year long! #FieldPhotoFriday
#FieldPhotoFriday We all know that weather doesn't cause earthquakes, RIGHT?!, but it can affect seismic stations. From flooding, to wind, fires, and more, our stations are out in the elements. Recent storms blocked the sun long enough to show us that this station may need some battery maintenance!
November 28, 2025 at 6:00 PM
#FieldPhotoFriday We all know that weather doesn't cause earthquakes, RIGHT?!, but it can affect seismic stations. From flooding, to wind, fires, and more, our stations are out in the elements. Recent storms blocked the sun long enough to show us that this station may need some battery maintenance!
Here's an oldie but goodie, a derpy hand turkey from a couple years back! Happy Thanksgiving from the Caltech Seismo Lab Family! #Thanksgiving #turkey
November 27, 2025 at 5:02 PM
Here's an oldie but goodie, a derpy hand turkey from a couple years back! Happy Thanksgiving from the Caltech Seismo Lab Family! #Thanksgiving #turkey
Weekly Earthquake Stats: 16 Nov 2025 - 22 Nov 2025. There were 249 events this week ranging from M 0.12 to 3.73. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
November 23, 2025 at 10:13 PM
Weekly Earthquake Stats: 16 Nov 2025 - 22 Nov 2025. There were 249 events this week ranging from M 0.12 to 3.73. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
With the shutdown over, our USGS partners, half of the SCSN, are back in the field!
One of their first stops: a remote station that had its electronics stolen. Hard to know why, since most parts are only useful for seismology, but it’s a reminder of the challenges for the SCSN!
#FieldPhotoFriday
One of their first stops: a remote station that had its electronics stolen. Hard to know why, since most parts are only useful for seismology, but it’s a reminder of the challenges for the SCSN!
#FieldPhotoFriday
November 21, 2025 at 6:03 PM
With the shutdown over, our USGS partners, half of the SCSN, are back in the field!
One of their first stops: a remote station that had its electronics stolen. Hard to know why, since most parts are only useful for seismology, but it’s a reminder of the challenges for the SCSN!
#FieldPhotoFriday
One of their first stops: a remote station that had its electronics stolen. Hard to know why, since most parts are only useful for seismology, but it’s a reminder of the challenges for the SCSN!
#FieldPhotoFriday
Meet Eliseo Banda, a Seismo Lab Staff Member who specializes in software engineering for the community seismic network (CSN)! Another fun fact about Eliseo is that he's an experienced DnD Dungeon Master and is leading a group of lab members on their first campaign! #SeismoLabSpotlight
November 20, 2025 at 10:12 PM
Meet Eliseo Banda, a Seismo Lab Staff Member who specializes in software engineering for the community seismic network (CSN)! Another fun fact about Eliseo is that he's an experienced DnD Dungeon Master and is leading a group of lab members on their first campaign! #SeismoLabSpotlight
Weekly Earthquake Stats: 09 Nov 2025 - 15 Nov 2025. There were 212 events this week ranging from M 0.12 to 2.94. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
November 16, 2025 at 10:00 PM
Weekly Earthquake Stats: 09 Nov 2025 - 15 Nov 2025. There were 212 events this week ranging from M 0.12 to 2.94. Check out our weekly playback map and visit www.scsn.org for detailed information. #earthquakes #seismology #SCSN #weeklystats @CaltechSeismo
#FieldPhotoFriday from our station near Hector Mine! Installed in 1997, two years before the 1999 Hector Mine earthquake. It recently got a new battery. Getting up the steep, sketchy road was no small feat, but the crew made it just in time before this week’s rain rolled in!
November 14, 2025 at 6:03 PM
#FieldPhotoFriday from our station near Hector Mine! Installed in 1997, two years before the 1999 Hector Mine earthquake. It recently got a new battery. Getting up the steep, sketchy road was no small feat, but the crew made it just in time before this week’s rain rolled in!
Welcome to the Seismo Lab, Dr. Brent Minchew!
A Caltech alum, U.S. veteran, and now professor of geophysics, Dr. Minchew has expertise in ice dynamics, remote sensing, and Earth system processes.
We’re honored to have him back and thank him for his service, and scientific discovery!
buff.ly/YuNviGM
A Caltech alum, U.S. veteran, and now professor of geophysics, Dr. Minchew has expertise in ice dynamics, remote sensing, and Earth system processes.
We’re honored to have him back and thank him for his service, and scientific discovery!
buff.ly/YuNviGM
Brent Minchew - Environmental Science and Engineering
I study how glaciers and ice sheets respond to climate change. I am most interested in understanding the mechanisms that will govern rates of sea-level rise in the coming decades and centuries. I am…
ese.caltech.edu
November 12, 2025 at 7:00 PM
Welcome to the Seismo Lab, Dr. Brent Minchew!
A Caltech alum, U.S. veteran, and now professor of geophysics, Dr. Minchew has expertise in ice dynamics, remote sensing, and Earth system processes.
We’re honored to have him back and thank him for his service, and scientific discovery!
buff.ly/YuNviGM
A Caltech alum, U.S. veteran, and now professor of geophysics, Dr. Minchew has expertise in ice dynamics, remote sensing, and Earth system processes.
We’re honored to have him back and thank him for his service, and scientific discovery!
buff.ly/YuNviGM