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News Release 06-063

Volcano-like Tremors Detected Deep Within Earth's Crust Near San Andreas

Rumbles are attributed to plate shifts, not volcanic activity

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Instrumentation to monitor tremors is deployed at the SAFOD borehole.

Instrumentation to monitor tremors is deployed at the SAFOD borehole.

Credit: EarthScope Project Office


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Data from a tremor are recorded at the SAFOD borehole.

Data from a tremor are recorded at the SAFOD borehole.

Credit: EarthScope Project Office


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