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Subsidence and Uplift in the Santa Clara Valley, 1997

1997 (approx.)

Detailed Description

Interferogram of Santa Clara Valley, California, shows patterns of subsidence and uplift occurring over 7 months in 1997, from January 4 to August 2. A central subsidence zone, (red) the result of seasonal groundwater pumping, is fully recoverable.

Sources/Usage

Public Domain.