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Wes Hildreth at Long Valley Caldera...

Wes Hildreth at Long Valley Caldera

Wes Hildreth is an expert when it comes to studying the Long Valley Caldera. Here, he is standing on Tertiary basalt lava flows on the north rim of the caldera, view to the southeast with Lake Crowley visible in the center of the caldera, and McGee Mountain above the lake on the skyline.

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

This image shows the brightest pixel values captured during 10 minutes of video.

Santa Cruz Main Beach video camera bright image

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

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Mount Konocti, a 1,312 m (4,305 ft) mountain on the eastern shore o...

Mount Konocti, a 1,312 m (4,305 ft) mountain on the eastern shore o...

Mt. Konocti erupted during the most recent stage of volcanism (01. Ma to 10,000 years ago), and a future eruption from the same site would be devastating to the nearby inhabitants.

A view from atop a building looking at the sandy beach, waves, and ocean.

Santa Cruz Cowells Beach Webcam Snapshot

Video camera snapshot 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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Little Borax Lake, along the western shore of Clear Lake, Californi...

Little Borax Lake, along the western shore of Clear Lake, CA, is a ...

The lake formed after an eruption occurred through a landslide deposit on the southeastern shore of the lake. Little Borax Lake is presently in the center of Buckingham Golf Course on the northern slope of Mount Konocti.

Image of the front page of Sound Waves, May - June 2012
March 22, 2019

Sound Waves, May - June 2012

The stories in the May - June 2012 issue of Sound Waves:

https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2012/06/

Gas Hydrates and Climate Warming—Why a Methane Catastrophe Is Unlikely 

Real-Time Mapping of Seawater and Atmospheric

Image: Seismic station,  USGS Northern California Seismic Network

Seismic station, USGS Northern California Seismic Network

Traditional seismic stations such as this one require a source of power (solar here), a poured concrete foundation and several square feet of space. They are not always practical to install in urban areas, and that's where NetQuakes comes in.

This image shows the brightest pixel values captured during 10 minutes of video.

Santa Cruz Cowells Beach video camera bright image

Video camera bright 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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Camera 1, Santa Cruz, California Main Beach time-averaged image from video camera looking at the sandy beach, pier, and ocean.

Santa Cruz Main Beach Webcam Time-Averaged Image

Video camera time-exposure image at Main Beach in Santa Cruz, California, looking eastward. Learn more about the cameras and how we're using them to study coastal change.

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