microearthquake

The initial stage of the eruption began when microearthquake activity increased steadily from May to December 2005.

A microearthquake (or microquake) is a very low intensity earthquake which is 2.0 or less in magnitude.

These events, as well as continuing microearthquake activity and the state of the scarps from previous ruptures, do indicate that the Garlock will produce another major quake at some point in the future.

The rusting iron superstructures of the station are being considered for dismantling over the fears of their accidental collapse which would cause a microearthquake damaging the radioactive storage in the area.

Sbar, M., M., Baranzangi, J. Dorman, C. Scholz, and R. B. Smith, 1971, Tectonics of the Intermountain Seismic Belt, Western United States: Microearthquake seismicity and composite fault plane solutions, Bull.