Welcome to the Research Earthquake Affiliates Website Welcome to the Earthquake Research Affiliates Earthquake Reserach Affiliates A Partnership Brining Business, Academia and Government Together
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Who We Are  
The Earthquake Research Affiliates (ERA) is a partnership that has been in existence for over 50 years. The ERA program brings together leaders in business, academia, and government to address questions about risk assessment and reduction, emergency response, and planning and preparation for significant earthquakes.


ERA Meeting

Friday, May 29, 2015

Caltech Beckman Institute Auditorium
400 S. Wilson Avenue
Pasadena, CA 91106

Register here.
(See new parking procedure)

Click here to view agenda


Click below for an animated shakemovie of the recent Hector Mine Aftershock:

M5.1 Hector Mine aftershock occurred at 8:18pm on 12/05/08, located 16 miles WNW of Ludlow, CA, and was felt over a wide area of Southern California. The event was followed by 45 smaller aftershocks, the largest being a M3.5 at 15:39 on 12/07/08. So far, there have been 34 events M2.0 and greater, and 4 events M 3.0 and greater (including the mainshock).

Hiroo Kanamori Recipient of the Kyoto Prize
Hiroo Kanamori, Professor Emeritus, who served 12 years as director of the Seismological Laboratory at Caltech, has been honored as one of this year's recipients of the prestigious Kyoto Prize. Hiroo was cited for "Elucidation of Physical Processes of Earthquakes and Its Application to Hazard Mitigation". This is a well deserved award that honors a lifetime of scientific contributions that have been made to the betterment of the human condition. You can read more about the prize and Hiroo's work on this website:

Caltech Media Center Opens
Click here for Media Center Dedication page.
On Thursday, June 29th, 2006, members of the media were invited to the Caltech Seismological Laboratory for the special Southern California Seisomological Network (SCSN) Media Center open house. The media center was recently remodeled, and although there are no more of the old drum seismometers, there are new features which utilize new technologies, creating better, more reliable methods for information dissemination. Our super-computer models seismic waves as they travel through the earth, and then uploads a modeled movie within 40 minutes of a M4+ earthquake in Southern California.
http://www.shakemovie.caltech.edu to get information on recent quakes or search the database for records dating from 1999.

To learn about how we collect data on seismological activity in Southern California, please visit www.SCSN.org. The Southern California Seismic Network (SCSN) is a branch of the California Integrated Seismic Network (CISN) and is made up of more than 350 seismic stations, creating one of the densest seismic networks in the world.

Sign up for ShakeMovie and Alerts at: http://www.shakemovie.caltech.edu/signup

Recent Earthquakes:

Earthquakes of the Last Week: http://www.scsn.org


Today in Earthquake History:

To recieve Earthquake Notification by email visit:

Did You Feel It? Community Internet Intensity Maps- Register your experience!

Are You Prepared?
Join the Dare to Prepare Campaign!

Earthquake professionals, business and community leaders, emergency managers, and others have joined together to organise Dare to Prepare, a year-long earthquake readiness campaign to raise earthquake awareness and encourage earthquake readiness in Southern California.

Acknowledging that "Shift Happens," the main message of the Dare to Prepare campaign is that if you "Secure Your Space" you can protect yourself, your family, and your property. Secure your space by strapping top-heavy furniture and appliances to walls, adding latches to kitchen cabinets, and securing TVs and other heavy objects that can topple and break or cause serious injuries. These and other simple actions will greatly reduce your risk of damage or injury, and limit your need for community resources after the next earthquake. Visit the Dare to Prepare site or order a "Putting Down Roots in Earthquake Country" booklet and dare to prepare yourself for the next big one!


ShakeMap is a tool used to portray the extent of potentially damaging shaking following an earthquake. It can be used for emergency response, loss estimation, and public information.

Caltech Seismo Lab

The Earthquake Research Affiliates office works closely with the Seismology Lab Department at Caltech. Please visit the Seismo Lab site for more info on the people, research, and technology that make Caltech a leader in earthquake research!


ERA Activities
Seismology Links
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Welcome to the Earthquake Research Affiliates