Unified Interior Regions
California
The Southwest Region includes California, Nevada, and Arizona. The Regional Office, headquartered in Sacramento, provides Center oversight and support, facilitates internal and external collaborations, and works to further USGS strategic science directions.
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Groundshaking animation: Hayward Fault, Fremont epicenter
Animation showing the intensity of groundshaking across the San Francisco Bay region during a hypothetical M 7.0 earthquake on the Hayward Fault with the epicenter in Fremont. Visit M7.0 Earthquake Scenarios - Hayward Fault for detailed perspective views. Â
PubTalk 9/2008 — Ready for the Next Big Bay Area Earthquake?
The 1989 Loma Prieta Earthquake was not the Bay Area's "Big One" but a repeat of the destructive 1868 Hayward earthquake may qualify!
by Tom Brocher, USGS Seismologist
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- The next large Hayward Fault earthquake will effect the entire San Francisco Bay Area - Are You Prepared?
- The Hayward Fault is the most
Sunflower sea star on the seafloor
Photograph of the seafloor off the California coast showing coarse sand, shells, and a sunflower sea star. It was taken during a "ground-truthing" survey off of Salt Point, California, in support of the California Seafloor Mapping Program.
PubTalk 8/2008 — How the Earth Copes with Our LUSTs
The amazing capabilities of subsurface life
by Barbara Bekins, USGS Research Hydrologist
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LUST= Leaking Underground Storge Tank
- By some estimates, the total carbon in subsurface bacteria is nearly as large as the carbon in all surface plants
- Underground microorganisms are capable of biodegrading an array
California Coast Seafloor
This photograph is of the seafloor off the California coast and shows coarse sand, shells and a sunflower sea star. This photograph supports the California Seafloor Mapping Program (CSMP), which was initiated in 2007 by the California Ocean Protection Council. Data collected during this project reveal the seafloor offshore of the California coast in unprecedented
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Sea Otter in Monterey Bay, California
A sea otter swims in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.
Sea Otter Swims in Monterey Bay, California
A sea otter swims in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.
Sea Otter Swims in Monterey Bay, California
A sea otter swims in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.
Sea Otter in Monterey Bay, California
A sea otter swims in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.
Sea Otter Swims in Monterey Bay, California
A sea otter swims in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.
Sea Otter Swims in Monterey Bay, California
A sea otter swims in Monterey Bay, California. USGS scientists study sea otters in efforts to help the threatened species continue to recover from near extinction.
PubTalk 7/2008 — A Moroccan Adventure
Searching for a blue-eyed turtle in the Sahara Desert
by USGS Herpetologist Jeffrey Lovich and visiting Cadi Ayyad University (Marrakech) Professor Mohammed Znari
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- See several ecoregions of central Morocco in a picturesque 1,000 mile journey
- Take a virtual tour from the Atlantic coast through High Atlas
Think of southern California, and images of beach, sun and surf come to mind, coupled with boundless recreation opportunities for beach-goers. What’s missing from these images? It could be the shorebirds that cavort at the edge of the sea and sand.
In observance of National Geography Awareness Week, November 11-17, the U.S. Geological Survey in Menlo Park will host a GIS (Geographic Information System) Day event for students of local elementary and high schools.
In observance of National Geography Awareness Week, November 11-17, the U.S. Geological Survey in Menlo Park will host a GIS (Geographic Information System) Day event for students of local elementary and high schools.
There are two weeks left for creative mappers of all ages to enter a poster in the annual poster/map contest, sponsored by the U.S. Geological Survey and the Bay Area Automated Mapping Association (BAMA).
WHAT: USGS wildfire research presentations at California’s 2001 Wildfire Conference and Public Events: Ten Years After the East Bay Hills Fire.
WHEN: Thurs., Oct. 11Â
WHERE: Scottish Rite Center, 1547 Lakeside Drive, Oakland, Calif.Â
WHO: Scientists of the USGS Western Ecological Research Center:
USGS wildfire research presentations at California’s 2001 Wildfire Conference and Public Events: Ten Years After the East Bay Hills Fire.
Saltcedar, an invasive shrub from Eurasia, has the notoriety of siphoning off millions of acre-feet of water from desert aquifers. Its amazing rate of spread, an estimated seven feet per hour, averaged over time, up the Little Colorado River - is difficult to imagine outside of sci-fi flicks.
Scientists from the U.S. Geological Survey’s Earthquake Hazards Team will be on site at an open trench on the Hayward Fault, Tuesday, October 2, to explain to city and county officials and transportation managers, the importance of trenching operations to earthquake research, and the latest results of trenching the Hayward Fault. WHEN: October 2, 10 a.m. to 1 p.m.
Scientists from the U.S. Geological Survey’s Earthquake Hazards Team will be on site at an open trench on the Hayward Fault, Tuesday, October 2, to explain to city and county officials and transportation managers, the importance of trenching operations to earthquake research, and the latest results of trenching the Hayward Fault.Â
New technologies in the form of Interferometric Synthetic Aperture Radar (InSAR) and the Global Positioning System (GPS) have helped scientists determine that fluid-like flow occurred just below the earth’s crust in the first few months following two recent large California earthquakes.
New technologies in the form of Interferometric Synthetic Aperture Radar (InSAR) and the Global Positioning System (GPS) have helped scientists determine that fluid-like flow occurred just below the earth’s crust in the first few months following two recent large California earthquakes.
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Imagine the world’s oceans teeming with whales, sea turtles and fishes, with shellfish so abundant they posed a hazard to navigation. Only in a Jules Verne classic fantasy? Not so. A group of scientists from several research institutions has recently depicted that such rich ocean life existed in the not-so-distant past.Â
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Locations
Southwest Regional Director's Office
Phone: (916) 278-9551
Fax: (916) 278-9566
Pacific Coastal and Marine Science Center
Phone: 831-460-7401
Fax: 831-427-4748
Sacramento Projects Office (USGS California Water Science Center)
Phone: 916-278-3000
Fax: 916-278-3070
Western Ecological Research Center - Headquarters
Phone: (916) 278-9485
Fax: (916) 278-9475
Geology, Minerals, Energy and Geophysics Science Center
Phone: (650) 329-4881
Earthquake Science Center
Western Geographic Science Center - Main Office
San Diego Projects Office (USGS California Water Science Center)
Phone: 619-225-6100
Fax: 619-225-6101
USGS California Volcano Observatory (CalVO package delivery)
askcalvo@usgs.gov
Phone: 650-329-5083
Truckee Field Office (USGS California Water Science Center)
Phone: 530-587-0910
Fax: 530-587-0914
Redding Field Office (USGS California Water Science Center)
Phone: 530-246-5282
Fax: 530-246-0717
Ukiah Field Office (USGS California Water Science Center)
Phone: 707-468-4040
Fax: 707-468-4022
Redlands Field Office (USGS California Water Science Center)
Phone: 909-798-3272
West Sacramento Projects Office (USGS California Water Science Center)
Phone: 916-617-2799
Eureka Satellite Office (USGS California Water Science Center)
Phone: 707-442-3169
Fax: 707-445-7860
Sacramento Field Office (USGS California Water Science Center)
Phone: 916-381-0207
Fax: 916-381-0556
Santa Cruz Field Office (USGS California Water Science Center)
Phone: 831-460-7494
Santa Maria Field Office (USGS California Water Science Center)
Phone: 805-928-9539
Fax: 805-928-9220
Poway Field Office (USGS California Water Science Center)
Phone: 858-679-4015
Fax: 858-679-4019
USGS Menlo Park Library
men_lib@usgs.gov
Phone: 650-329-5027
Fax: 650-329-5132