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Generalized regional geologic map emphasizing the location, extent, and ages of large volcanic centers including those in Lassen

Generalized regional geologic map emphasizing the location

Generalized regional geologic map emphasizing the location, extent, and ages of large volcanic centers including those in Lassen Volcanic National Park and vicinity, California.

Small red cinder cone erupted on top of Mammoth Crest, viewed from ...

Small red cinder cone erupted on top of Mammoth Crest, viewed from ...

The red basaltic cone was erupted on top of Mammoth Crest, and an accompanying lava flow spilled 200-300 m down the steep slope below the cone. The cone erupted between 126,000 and 64,000 years ago.

Image: Golden Gate Bridge, California

Golden Gate Bridge, California

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

Simplified map of Long Valley Caldera showing several field stops i...

Long Valley Caldera showing several field stops in blue

Simplified map of Long Valley Caldera showing several field stops in blue.

Horseshoe Lake, Mammoth Mountain, California (Google Earth image) w...

Horseshoe Lake, Mammoth Mountain, CA (Google Earth image) with area...

Horseshoe Lake, Mammoth Mountain, California (Google Earth image) with area of elevated carbon dioxide degassing measurements from 2012 in rainbow colors (highest amount in purple to normal in blue).

Image: A Fire Tornado Swirls Near a Home in Southern California

A Fire Tornado Swirls Near a Home in Southern California

A screenshot from the USGS film "Living with Fire".

A fire tornado swirls near a home in southern California. USGS is investigating the factors that dictate home loss from wildfires as part of the USGS Southern California Wildfire Risk Scenario Project.

Image courtesy of Tim Walton, Photo One Productions, CALFIRE. Shared with permission.

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

Sound Waves, June 2011

The stories in the June 2011 issue of Sound Waves:

https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2011/06/

International Team Studies Tsunami Deposits in Japan to Improve Understanding and Mitigation of Tsunami Hazards 

USGS Scuba

Lassen Peak viewed from the south at the summit of Brokeoff Volcano...

Lassen Peak viewed from the south at the summit of Brokeoff Volcano...

Lassen Peak viewed from the south at the summit of Brokeoff Volcano, Lassen Volcanic National Park.

San Lorenzo River at Big Trees State Park, CA

This webcam is located at the USGS stream-gaging station on San Lorenzo River at Big Trees State Park. This station provides continuous monitoring of river stage. The webcam provides valuable information to the National Weather Service, first-responders, and area residents to evaluate real-time

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