For general information or questions about the California Earthquake Clearinghouse, please contact: This email address is monitored by several members of the management committee and will yield the quickest response.

For regular updates about our activities, you can also join our mailing list.

For specific questions for a particular member of the California Earthquake Clearinghouse Management Committee, please use the contact information below.


California Geological Survey
801 K Street, MS 12-31
Sacramento, CA 95814

Cynthia Pridmore
Engineering Geologist
Seismic Hazard Program


Kate Thomas
GIS and Digital Publications Unit Supervisor

Vice Chair:

Earthquake Engineering Research Institute (EERI)
499 14th Street, Suite 220
Oakland, CA 94612-1934 USA
phone: 510-451-0905

Heidi Tremayne
Executive Director


Maggie Ortiz-Millan
Program Manager