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Eleyne Phillips making GNSS measurements above San Andreas Lake, California

By Earthquake Science Center
USGS scientist kneels beside gold ring GNSS antenna on a hillside above San Andreas Lake with fog along the distant coast.
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Detailed Description

Photo shows USGS scientist Eleyne Phillips using a GNSS to measure crustal deformation above San Andreas Lake, California. The USGS has been measuring changes in the positions of benchmarks in northern California over decades to monitor earthquake hazards.

Sources/Usage

Public Domain.

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