Mt. Soledad landslide in La Jolla, CA - October 2007

California Geological Survey

​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​The California Geological Survey is one of the oldest geological surveys in the nation. Our mission is to provide scientific products and services about the state's geology, seismology, and minerals that affect the health, safety, and business interests of the people of California. –“Altiora Petimus” (We Reach Higher)

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Job Posting: Seismic Instrumentation Specialist (JC-322568)Job Posting: Seismic Instrumentation Specialist (JC-322568)The California Geological Survey (Department of Conservation) is seeking to hire a PRECISION ELECTRONICS SPECIALIST to join its Strong Motion Instrumentation Program. Visit CalCareers to see job description, application instructions, and more. The application deadline is August 22, 2022., Link to job posting at CalCareers
Take the Precision Electronics Specialist examination todayTake the Precision Electronics Specialist examination todayThe PRECISION ELECTRONICS SPECIALIST examination is open indefinitely at Precision Electronics Specialists install, maintain, and repair components of California's earthquake detection network. Take the exam now so you'll be eligible when a PES position opens., Link to exam posting at CalCareers
New Publications AvailableNew Publications AvailableIn case you missed it: we recently published a statewide radon report, four new geologic maps, and a bunch of new geospatial data for the California Geologic Atlas map series. It's all on our Publications Announcements page. Check it out!, Publications Announcements

 Upcoming Events



Calendar of geology-related events and anniversariesCalendar of geology-related events and anniversariesSubscribe to our Public Calendar of Events and never miss an important date: Anniversaries of major earthquakes and tsunamis · The Great Shakeout · SMIP Seminar...and more!2021-01-01T08:00:00Z2026-01-01T08:00:00Z, Link to Public Calendar of Events page

 Featured Content



Publications of the California Geological SurveyPublications of the California Geological SurveyOfficial directory of publications we've produced from the late 19th century to the present.
Publication AnnouncementsPublication AnnouncementsRelease announcements of maps, reports and other publications of the California Geological Survey.
Maps and DataMaps and DataLooking for California geologic maps or GIS data? Start here.
Earthquake Data and ReportsEarthquake Data and ReportsLinks to the Center for Engineering Strong Motion Data, Internet Quick Reports and Internet Data Reports, ShakeMaps, and SMIP Seminar information.


 Contact Us

California Geological Survey
715 P Street, MS 1901
Sacramento, CA 95814