Statewide California Earthquake Center

Our mission is to develop and share cutting-edge earthquake system science to enhance California’s resilience and to educate and inspire future scientists.

[Statewide California Earthquake Center @SCEC]

Would you like to know an earthquake is coming before you feel the shaking? Download the free MyShake app to receive earthquake early warnings and take protective action when seconds matter. Learn more and get alerts at https://t.co/KAhmspQwZ8 #MyShake

[Statewide California Earthquake Center @SCEC]

Do you know if your home, workplace, or favorite beach is in a tsunami hazard zone? California's tsunami hazard maps can help you identify at-risk areas, plan evacuation routes, and prepare before an emergency. Explore the maps at https://t.co/8NYy8xCzQE

[Statewide California Earthquake Center @SCEC]

California nonprofits, schools, agencies, tribes & community groups can improve safety with a 2026 @Cal_OES "Secure Your Space" Project. Selected applicants receive up to $500 in earthquake fasteners, + installation guidance from @ECA! Apply by June 18: https://t.co/jXvz9egcC6

[Statewide California Earthquake Center @SCEC]

2026 @Cal_OES "Secure Your Space" Projects, coordinated by @ECA, help California nonprofits, schools, and other groups secure items that might fall during earthquakes. Projects receive fasteners worth $500, plus installation support! Apply by June 18 at https://t.co/vtOVzCHtde

[California Geological Survey @CAGeoSurvey]

Between May 25 (12:00 AM PST) and May 31 (11:59 PM) there were 61 earthquakes in California of magnitude 2.0 or larger.

🔸56 quakes between M2.0 - 2.9
🔸5 quakes between M3.0 - 3.9

The largest earthquake was a magnitude 3.9 W of Petrolia, CA.

https://t.co/u2xWzAlgQ3

[California Geological Survey @CAGeoSurvey]

Between May 4 (12:00 AM PST) and May 10 (11:59 PM) there were 183 earthquakes in California of magnitude 2.0 or larger.

🔸153 earthquakes of M2.0 - 2.9
🔸25 earthquakes of M3.0 - 3.9
🔸5 earthquakes of M4.0 - 4.9

The largest quake was a M4.9 WSW of Crescent City, CA

[ShakeOut @ShakeOut]

This excellent new animation from @UNDRR shows earthquake safety actions and also includes guidance for people who use mobility devices; learn what to do in other settings at https://t.co/iptRkDzkDw and https://t.co/wwne6HfRs7

[UNDRR @UNDRR]

"Earthquakes are one of nature's deadliest hazards. In seconds, they can turn homes into ruins, undo decades of progress & claim thousands of lives." - Guterres

Most earthquake deaths result from collapsing buildings ➡️ https://t.co/sq8vIEcRjm #EarthquakeDay #BuildingResilience

[Statewide California Earthquake Center @SCEC]

As the global home for Great @ShakeOut Earthquake Drill coordination, @SCEC encourages support and awareness of this important new annual day to Remember, Protect, and Build Disaster Resilience.

[ShakeOut @ShakeOut]

We are proud of the new partnership between @UNDRR and @ShakeOut to observe this new #EarthquakeDay and to encourage everyone, everywhere to learn and practice earthquake safety actions such as #DropCoverHoldOn during annual earthquake drills. Learn more: https://t.co/YzOOEhNDmI

[UNDRR @UNDRR]

📢 Smart public policies can prevent earthquake disasters.

Most earthquake deaths result from damage to buildings & infrastructure – we can protect people from this.

🕯️ Remember. Protect. Build disaster resilience.

➡️ https://t.co/2EvZm6tGpc #BuildingResilience #EarthquakeDay

[California Geological Survey @CAGeoSurvey]

Between April 13 (12:00 AM PST) and April 19 (11:59 PM) there were 28 earthquakes in California of magnitude 2.0 or larger.

🔸26 earthquakes between magnitude 2.0 - 2.9
🔸2 earthquakes between magnitude 3.0 - 3.9

The largest earthquake was a magnitude 3.5 near Ludlow, CA.

[California Geological Survey @CAGeoSurvey]

Between April 6 (12:00 AM PST) and April 12 (11:59 PM) there were 39 earthquakes in California of magnitude 2.0 or larger.

🔸38 earthquakes between magnitude 2.0 - 2.9
🔸1 earthquake between magnitude 3.0 - 3.9

The largest earthquake was a magnitude 3.2 near Trinidad, CA.

[Statewide California Earthquake Center @SCEC]

Reminder: ECA’s free Statewide Webinar is tomorrow, March 18, from 10am-12pm PT. Join us for updates from ECA and partners, plus information on California tsunami hazards and how to get ready ahead of Tsunami Preparedness Week. Register: https://t.co/hTqObnleqN

[Statewide California Earthquake Center @SCEC]

Join us for the free ECA Statewide Webinar on March 18, 10am-12pm PT. Get updates from ECA and partners, plus an overview of California tsunami hazards and safety steps ahead of Tsunami Preparedness Week. Register: https://t.co/hTqObnleqN

[Statewide California Earthquake Center @SCEC]

Join us for the free ECA Statewide Webinar on March 18, 10am-12pm PT. Get updates from ECA and partners, plus an overview of California tsunami hazards and safety steps ahead of Tsunami Preparedness Week. Register: https://t.co/hTqObnleqN

[Statewide California Earthquake Center @SCEC]

California had damage from this tsunami, especially along the north coast. Everyone can take actions to be prepared (& practice what to do if along the shore) by participating in California's Tsunami Preparedness Week (March 21-29)- visit https://t.co/BTCH6WVoHj to learn more.

[The TsunamiZone @thetsunamizone]

On March 11, 2011, Japan faced a catastrophic M9.1 earthquake which triggered a devastating tsunami along Japan’s coastline. Fifteen years later, we remember the victims and the importance of being prepared. Learn more about the science and safety here: https://t.co/LIV2P4GGfS

[Statewide California Earthquake Center @SCEC]

Today marks the 32nd anniversary of the 1994 Northridge earthquake. The M6.7 quake beneath the San Fernando Valley became the costliest U.S. natural disaster until Hurricane Katrina (2005). Learn more: https://t.co/1aRBZFeaD8

[Statewide California Earthquake Center @SCEC]

Want to keep up to date with SCEC news, events, and jobs? Then sign up for our newsletter by going to the bottom of the new SCEC website to stay in the loop!
@NSF @USGS @USC @USCDornsife

[Statewide California Earthquake Center @SCEC]

Missed a recent SCEC workshop or annual meeting session? Many presentations and recordings are now listed on our Events pages. Catch up and share with colleagues at https://t.co/zKTl2Yb3cA.

[Statewide California Earthquake Center @SCEC]

SCEC bridges the gap between cutting-edge science and preparedness for a more resilient California, through education, research, and more realistic earthquake simulations. Learn more at: https://t.co/ZGPQIQB7Vp.