View of Mono Lake and Negit Island
from Panum Dome
LONG VALLEY VOLCANIC CENTER VOLCANO (CAVW #1203-14-)
37°42' N 118°52'12" W, Summit Elevation 7231 ft (2204 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN
Seventeen earthquakes between magnitude M=1.0 and M=3.0 occurred in the Long Valley region since the last update on May 14, 2010. All but three of the events were located in the Sierra Nevada south of the caldera. The others (including the M=3.0) were located ~ 20 km (12 miles) north of the Town of Mammoth Lakes. This level of activity is considered normal for the area.
Features
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Welcome to the New LVO Website!
We've revised the LVO website to match the format of the Volcano Hazards Program website and the Yellowstone Observatory website. In addition to the content of the previous site, we've also added a new Field Guide to the Long Valley Caldera area and a Virtual Tour. If you have suggestions for the new site or cannot find content from the old site, please email us.
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Monitoring Data
Access Long Valley Caldera monitoring information and data.
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Virtual Tour
Go on a Virtual Tour of the Long Valley Volcanic Center.
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Maps
Maps and illustrations of Long Valley Caldera area.
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Hot Creek
Hot Creek and other hazards in the Long Valley Caldera.
