Welcome to the Research Earthquake Affiliates Website 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 Membership Meeting:
May 11, 2007
Informational Packets are in the mail, and you may register here.

Caltech's New Seismology

One of the most powerful computer clusters in the academic world exists in the sub-basement of the Seismological Laboratory at Caltech in order to unlock the mysteries of earthquakes. Originally built in July 2005, the supercomputer was recently upgraded in February 2007. The new 'Beowulf' cluster contains 512 dual quad core processors with 12.63 GB RAM, 2.3GHZ and 6 Terra Bytes of distributed memory, Myrinet connections and 35 Terra Bytes of disk space. This project was funded by Dell, Intel, Myricom and the National Science Foundation. It is equivalent to 4096 personal computers- like the one you are probably surfing the net on now!
To learn more visit our Research page.

Caltech Media Center Opens
On Thursday, June 29th, 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:
The Solomon Islands earthquake of April 1, 2007, had a magnitude of 8.1 and occurred along the boundary of the Pacific plate with, respectively, the Australia, Woodlark, and Solomon Sea plates. At least 40 people killed, an undetermined number missing and several villages were destroyed by the earthquake and following tsunami.

An earthquake of 6.7 magnitude occurred north of Kanazawa, Honshu, Japan at 6:42 PM MDT, Mar 24, 2007 (Mar 25 at 9:42 AM local time in Japan). At least one dead and 150 injured. 58 houses destroyed and 455 seriously damaged. A six inch tsunami was recorded.


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.

Earthquakes of the Last Week: http://www.scsn.org/commentary/?cat=3

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!

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!

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