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.

States L2 Landing Page Tabs

Filter Total Items: 1,046
June 14, 2005

PubTalk — Deep Freeze

The Impact of Science on U.S. Climate-Change Policy

By Judy Layzer, MIT Political Scientist, and Herman Karl, USGS Earth Scientist

  • Why have science and scientiests had so little impact on U.S. climate-change policy?
  • Hear about the present implications of past societal collapses resulting from climate change
  • Can
May 26, 2005

PubTalk — Sonoran Desert

Fragile Land of Extremes
A video presentation and discussion

Research Ecologists Cecil Schwalbe and Todd Esque will introduce the 2003 USGS video Sonoran Desert: Fragile Land of Extremes, present an update on recent research, and answer your questions. 

  • Learn about the fantastic biodiversity in North America's
April 28, 2005

PubTalk — Earthquakes at the USGS

Blowing the Lid off Seismic Science for 40 Years

Ross Stein, representing the USGS Earthquake Hazards Team 

The Parkfield earthquake of 1966 launched a torrent of research at the USGS in Menlo Park. With the San Andreas Fault as a backyard lab and global earthquakes as a guide, the USGS has changed the landscape of earthquake science

Photograph shows eroding cliff in Isla Vista, California, with parts of houses hanging over edge.
April 28, 2005

Homes along the edge of the coast in Isla Vista, California

Homes along the edge of the coast in Isla Vista, California, Santa Barbara County, face a short lifespan because of eroding bluffs that support them.

March 31, 2005

PubTalk — Commotions in the Oceans

USGS Shipboard Research Sparked Scientific Advances

By William R. Normark, and
David W. Scholl, Marine Geologists

  • Alaskan work from the Survey's M/V Eider in the 1950's led to visualizing how great earthquakes and tsunamis originate along trenches
  • In the 1970's, researchers discovered deep-sea "black
February 24, 2005

PubTalk — When Rocks Fall and the Land Slides

Hear why California makes an ideal environment for landslides North face

By Gerald F. Wieczorek, Geological Engineer, and
Raymond C. Wilson, Landslide Geologist

  • Hear why California makes an ideal environment for landslides North face
  • Learn about rock falls, debris flows, and other landslides Rocks fall
January 29, 2005

PubTalk 1/2005 — Deciphering an Estuarine Ecosystem

35 Years of San Francisco Bay Studies

By John Conomos, Scientist Emeritus

 

  • USGS research in the Bay system began in the 1960s with a search for underwater earthquake faults
  • In the 1970s, the research team expanded to cover studies of water properties and quality, water mixing and flow, and estuarine ecology
map of California shaded by GAMA deep aquifer study units
December 31, 2004

GAMA Public-supply Well (Deep Aquifer) Assessment Study Units

The GAMA program is a comprehensive assessment of statewide groundwater quality. The program is designed to help better understand and identify risks to groundwater resources. Groundwater is sampled at many locations across California in order to characterize its constituents and identify trends in groundwater quality. The results of these tests provide information for

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Poster laid out with photos, images, and text.
December 31, 2004

Big Sur Coastal Landslides

Large-scale poster describing USGS work.

The USGS studied air photos of the Big Sur coast taken in 1942 and 1994, in cooperation with the California Department of Transportation (Caltrans) and the University of California at Santa Cruz (UCSC).

We used the photographs to create 3D computer models. By comparing the two models, we can see the differences caused

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Moutain Diablo in the early morning
December 31, 2004

Mt. Diablo from Suisun Marsh

Picturesque view of Mt.Diablo early in the morning from Suisun Marsh.

Attribution:
This poster shows information about the greater San Francisco Bay area, with text that talks about our research in the area.
December 31, 2004

Oceanography Beyond the Golden Gate

Large-scale poster describing USGS work.

The USGS measured ocean currents and temperatures off Central California as part of an international group of Federal, State, Academic, and private institutions. The project was part of a larger study that took nearly 14 years to finish. This group also studied geology, biology, and environmental issues in the Gulf of the

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Filter Total Items: 946
USGS
April 7, 2000

The Hector Mine earthquake that occurred Oct. 16, 1999, in the Mojave Desert east of Los Angeles, woke a lot of people up but injured no one and caused a minimal amount of property damage.

USGS
April 5, 2000

The rhododendrons and azaleas that create a spectacular display of color each year at the U.S. Geological Survey in Menlo Park, will be at their peak for the next few weeks, and many of the exotic plants will be at their best when the USGS holds its triennial Open House, May 13 and 14, at the center at 345 Middlefield Road in Menlo Park.

USGS
March 22, 2000

The most acidic waters ever measured are percolating through an underground mine near Redding, Calif., according to scientists with the U.S. Geological Survey.

USGS
March 15, 2000

Recent rains may have made things unstable on some parts of San Bruno Mountain, south of San Francisco, but one fault the mountain doesn’t have is a fault; at least none that will cause any problems, according to scientists at the U.S. Geological Survey.

USGS
February 29, 2000

If certain employees of the U.S. Geological Survey are begging for used tennis balls, it must mean that something big is brewing. And it is.

USGS
January 24, 2000

On January 26, 1700, the largest earthquake known to have occurred in the "lower 48" United States, rocked Cascadia, a region 600 miles long that includes northern California, Oregon, Washington, and southern British Columbia.

USGS
December 16, 1999

The U.S. Geological Survey still needs a few good back yards. Beginning in January 2000, the USGS Earthquake Hazards Team, in cooperation the seismographic Station at UC Berkeley, will begin installing 60-70 seismograph stations in the core urban areas of San Francisco, Oakland and Berkeley.

USGS
December 9, 1999

Holocene muds that cover the Santa Cruz, Calif., continental shelf have enough breaks to reveal traces of the San Gregorio fault, according to scientists with the U.S. Geological Survey, who will present several papers relating to the side-scan sonar images that were obtained earlier this year.

USGS
December 8, 1999

The Moscone convention center will be alive with the sound of music, Thursday, Dec. 16, as U.S. Geological Survey geophysicist Andrew Michael presents, "The Music of Earthquakes -- Waveforms of Sound and Seismology."

USGS
November 22, 1999

All offices of the U.S. Geological Survey, at 345 Middlefield Road in Menlo Park, will close at 2 p.m., Wednesday, November 24, but will be open to serve the public Friday, November 26. This includes the map sales office and the USGS library.

USGS
October 22, 1999

Southern California’s deserts have been profoundly altered since the arrival of modern civilization and it may take centuries for the harsh but fragile ecosystem to recover even with vigorous intervention to restore natural habitats, according to an article in the current issue of the journal Environmental Management.

USGS
October 21, 1999

Recent devastating earthquakes have impacted Turkey, Taiwan, and Mexico. If the epicenter of last weeks 7.1 Hector earthquake in the Mojave Desert had occurred 100 miles to the east or to the west, Las Vegas or Los Angeles would still be picking up the pieces.