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: 1,121
December 12, 2002

PubTalk 12/2002 — Hawai`i's Volcanoes—Never a Dull Moment

20 Years of Eruption at Kilauea and Waiting for Mauna Loa

by Don Swanson,Volcanologist, Hawaiian Volcano Observatory

 

  • Kilauea's Pu'u O'o-Kupaianaha eruption, which began on January 3, 1983, is already the volcano's longest rift eruption in at least 600 years
  • Lava has destroyed 8 miles of highway and 189
November 21, 2002

PubTalk 11/2002 — What is a Butterfly Worth?

Challenge of Making Economic Estimates for Biodiversity

by Alicia Torregrosa, Geographer and Ecologist

 

  • How can we best strike a balance between vineyard development and wildlife in the Napa Valley?
  • Geographic Information System (GIS) facilitates comparing the "apples and oranges" of endangered species and the
Image: California Sea Lion (Zalophus californianus)
October 31, 2002

California Sea Lion (Zalophus californianus)

California sea lions on a platform.

Attribution: Ecosystems
Image: California Sea Lion (Zalophus californianus)
October 31, 2002

California Sea Lion (Zalophus californianus)

California sea lions on a platform.

Attribution: Ecosystems
Image: California Sea Lion (Zalophus californianus)
October 31, 2002

California Sea Lion (Zalophus californianus)

California sea lions on a platform.

Attribution: Ecosystems
Image: California Sea Lion (Zalophus californianus)
October 31, 2002

California Sea Lion (Zalophus californianus)

California sea lions on a platform.

Attribution: Ecosystems
Image: California Sea Lion (Zalophus californianus)
October 31, 2002

California Sea Lion (Zalophus californianus)

California sea lions on a platform.

Attribution: Ecosystems
October 24, 2002

PubTalk 10/2002 — Plumbing the Mysteries of the San Andreas Fault

Deep Drilling to Test Fundamental Theories About Faulting and Earthquakes

By Stephen H. Hickman, Geophysicist

 

  • Scientists will make measurements, obtain samples and place instruments directly within the fault at a depth of 2.5 miles, creating the San Andreas Fault Observatory at Depth (SAFOD)
  • SAFOD's instruments
View from the sky looking at a very high coastal cliff with gentle waves.
September 30, 2002

Coastal cliffs near Fort Funston in 2002

Photograph of a coastal cliff where a large landslide occurred between 2002 and 2010. This photo, taken in 2002, shows the cliff before the landslide.

September 26, 2002

PubTalk 9/2002 — Healing the Redwood Creek Watershed

Successes and Failures in a Large-scale Watershed Restoration Program

by Mary Ann Madej, Geologist

 

  • Can we undo the effects of decades of logging and road-building on salmon habitat and redwood forest?
  • The Redwood Creek restoration program in California--one of the Nation.s largest and longest-running watershed
August 29, 2002

PubTalk 8/2002 — Revealing the Hidden World Beneath Monterey Bay

Explore the diverse features on and below the sea floor in the Monterey Bay National Marine Sanctuary

by Steve Eittreim, Marine Geologist

 

  • See---
    • Drowned bedrock pinnacles that provide shelter for rockfish
    • Earthquake faults that slice through the sea floor
    • New, highly detailed views of the
July 25, 2002

PubTalk 7/2002 — Beyond the Golden Gate

Oceanography, Geology, Biology, and Environmental Issues In The Gulf of the Farallones

by Herman A. Karl, Marine Geologist, and Edward Ueber, Director, Gulf of the Farallones National Marine Sanctuary

 

  • Learn about the complex marine geology offshore from the San Francisco Bay region
  • Hear the story of the 47,000
Filter Total Items: 973
USGS
April 15, 1997

Methyl tert-butyl ether (MTBE) and its potential effects on air and water quality were the focus of a session Wed. and Thurs, April 16-17, 1997, at the American Chemical Society annual meeting in San Francisco, California. U.S. Geological Survey scientists will report on several studies of the occurrence and distribution of this compound in surface water and ground water during the session.

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.