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: 1,076
Three men stand in front of a single-engine airplane in an open field.
December 31, 1965

Three geologists and a plane

Three pioneers of USGS geological studies, in 1965, from left to right: Parke D. Snavely, Jr., Robert E. Wallace, and Thomas W. Dibblee, in front of a 1964 Cessna 182G Skylane.

Photo of a low, one-story building with windows and a big front entrance reading Wm. Wrigley Jr. Co.
December 31, 1955

Front of the William Wrigley, Jr. Company building in west Santa Cruz

Front of the Wm. Wrigley Jr. Co. building in 1955, now home to the USGS Pacific Coastal and Marine Science Center.

A building after an earthquake has crumbled the roof and brick walls, the interior is now visible.
March 26, 1933

Long Beach Earthquake Damage

View of John Muir School on Pacific Avenue in Long Beach, California, showing damage from the March 10, 1933 Long Beach earthquake. Photo taken 8 days after the earthquake, on March 18, 1933. Photo by W.L. Huber, USGS.

Coso hot springs, black and white image
February 4, 1920

Coso Hot Springs located at Coso Volcanic Field, CA

Coso Hot Springs in Coso volanic fields, Feb 4, 1920.

View from the sky of a city and its waterfront with various ships docked, and most buildings on land are ruined.
May 28, 1906

San Francisco in ruins, 1906

One of the most well-known photographs by George R. Lawrence, taken May 28, 1906, about 6 weeks after the Great San Francisco earthquake which occurred on April 18. The 160-degree panorama was taken from a camera suspended from a kite 2,000 feet in the air. The view looks up Market Street with the waterfront and Union Ferry Building in the foreground.

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Mount Konocti viewed from Cinder Cone, Clear Lake Volcanic Field.
December 31, 1905

Mount Konocti viewed from Cinder Cone, Clear Lake Volcanic Field.

Mount Konocti, the most distinct volcanic feature of the Clear Lake Volcanics as viewed to the west from Cinder Cone.

old black and white photo of collapsed building, with inset image of the building before collapse
December 31, 1868

Alameda County Courthouse (Calif.) before and after 1868 Earthquake

Strong shaking during the 1868 Hayward Fault earthquake caused the second story of the Alameda County Courthouse in San Leandro to collapse (photo courtesy of the Bancroft Library, University of California). The inset photo shows the courthouse before the quake

Delta Smelt being held in hand
January 1, 0000

Delta Smelt

Delta Smelt being held in hand

This dark image shows changes in pixels in a video image over 10 minutes.

Santa Cruz Cowells Beach video camera variance image

Video camera variance image at Cowells Beach in Santa Cruz, California, looking southward. Learn more about the cameras and how we're using them to study coastal change.

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Image of the front page of Sound Waves, Aug. 2011
March 22, 2019

Sound Waves, Aug. 2011

The stories in the Aug. 2011 issue of Sound Waves:

https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2011/08/

USGS Arctic Ocean Research: A Polar Ocean Acidification Study

Three-Week Expedition Images Sediments Beneath the Gulf of Alaska

Filter Total Items: 963
USGS
April 15, 1997

Methyl tert-butyl ether (MTBE) in the nation’s ground waters and surface waters will be the subject of papers and poster presentations by U.S. Geological Survey scientists at the American Chemical Society annual meeting, April 16-17, in San Francisco, Calif.

USGS
April 10, 1997

U.S. Geological Survey scientists are encouraged because they now know that they have the capability to explain the blind thrust faults of the Los Angeles region with seismic reflection methods, according to USGS researcher Dr. Rufus Catchings. 

USGS
March 17, 1997

A cooperative agreement with the University of Southern California (USC) for the operation of the Southern California Earthquake Center has been renewed by the U.S. Geological Survey.

USGS
February 18, 1997

LECTURE: -- "LIVING WITH GEOLOGIC HAZARDS IN SAN MATEO COUNTY" WILL BE THE SUBJECT OF THE NEXT U.S. GEOLOGICAL SURVEY’S FREE PUBLIC LECTURE.

USGS
February 13, 1997

"There is mounting evidence that Mars is a water-rich planet that may have experienced warmer climates, and therefore, life, in the past,"according to Michael Carr, an astrogeologist with the U.S.Geological Survey in Menlo Park, Calif.

USGS
January 19, 1997

LECTURE: -- "THE COLORADO RIVER IN THE GRAND CANYON" WILL BE THE SUBJECT OF THE NEXT U.S. GEOLOGICAL SURVEY’S FREE PUBLIC LECTURE.

USGS
January 8, 1997

Hydrologists and chemists from the U.S. Geological Survey will be on Mallard Island, near Pittsburg today, Jan. 8, collecting water and sediment samples from Bay-Delta waters to determine the amount of pesticides that are being washed into the Bay by this year’s floods on Bay-Delta rivers.

USGS
January 3, 1997

The floods have crested and are beginning to recede in most places in the Pacific Northwest. Nevertheless dozens of U.S. Geological Survey personnel, who were busy over the holidays measuring the high streamflows and keeping river stage monitors operating, are still busy in the field and in their offices. Field crews have been hampered by mudslides, road closures, and extremely dangerous condition

USGS
December 18, 1996

The good news is that sea water and wave action aren’t being too rough on some sections of the beach cliffs of the San Mateo County, Calif., coast; the bad news is that slumping caused by fresh water erosion is destroying some of the beach cliffs at rates of up to two meters per year, according to scientists with the U.S. Geological Survey in Menlo Park, Calif.

USGS
December 16, 1996

A new method of assessing the danger of ground failure due to soil liquefaction during an earthquake made its debut in San Francisco, Tuesday afternoon, December 17.

USGS
December 13, 1996

"Secrets in Stone," a video that chronicles the series of scientific discoveries in the early 1960s that led to broad acceptance of the theory of plate tectonics, will be shown for the first time on Tuesday, December 17, 1996, at the annual meeting of the American Geophysical Union (AGU) in San Francisco. The premiere showing will be held at 4:30 p.m., in Room 122 of the Moscone Center.

USGS
September 27, 1996

Dr. Crofton B. Farmer of Pasadena, California, and Dr. M. Patrick McCormick of Hampton, Virginia, have received the 1996 Pecora Award, one of the top federal awards for contributions in remote sensing.