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

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A view from atop a coastal bluff looking at a sandy beach, waves, and ocean.

Sunset Beach Camera 2 Snapshot

Video camera snapshot at Sunset State Beach in Watsonville, California, looking north. Learn more about the cameras and how we're using them to study coastal change.

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Icon made to look like a zipper on piece of paper is being unzipped, with the word ZIP at the bottom of the paper.
January 1, 2014

CoSMoS Southern California flooding hazard scenarios

ZIP file (3.6 MB) contains three files when uncompressed: 

  • an essential readme.txt file and
  • model projections of two Southern California flooding hazard scenarios:
     - ARkStorm, and
     - January 2010 El Niño and Sea-Level Rise.

For more information, see

Aerial view west across the upper part of Medicine Lake Volcano tow...

Aerial view west across the upper part of Medicine Lake Volcano tow...

Medicine Lake lies within the shallow basin of Medicine Lake caldera. Glass Mountain flow, draped over the east side of the volcano, is the youngest lava flow at the volcano. The northeasternmost dacite tongue extends nearly to the bottom of the photo (distal lobes are outlined to enhance visibility).

Whiskeytown National Recreation Area Post-fire Recovery

A landscape at Whiskeytown National Recreation Area 2 months and 9 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

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Lidar images of Shastina cone, west flank of Mount Shasta, Californ...

Lidar images of Shastina cone, west flank of Mount Shasta, CA. Deta...

Lidar images of Shastina cone, west flank of Mount Shasta, California. Details of lava flows and other surficial features are best seen in the image to the right with vegetation removed.

Image: Golden Gate Bridge, California

Golden Gate Bridge, California

The Golden Gate Bridge seen through Racoon Strait in the San Francisco Bay, California.

Attribution: Ecosystems
A view from atop a coastal bluff looking at a sandy beach, waves, and ocean.

Sunset Beach Camera 1 Timex

Video camera timex (time-exposure) image at Sunset State Beach in Watsonville, California, looking northwest. Learn more about the cameras and how we're using them to study coastal change.

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Whiskeytown National Recreation Area Post-fire Recovery

A landscape at Whiskeytown National Recreation Area 2 months and 9 months after summer 2018's Carr Fire near Redding, California, where USGS WERC researchers are studying fire impacts, post-fire vegetation recovery, and post-fire erosion and debris flows.

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