With a grant from the Moore Foundation, the BSL is installing TremorScope, four borehole and four surface stations positioned to record deep tremor along the San Andreas Fault in central California. Left: recently discovered tremors (gold stars) and the location of the proposed stations, whose instrumentation will be used to study the behavior of faulting in the deep crust.
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With a grant from the Moore Foundation, the BSL is installing TremorScope, four borehole and four surface stations positioned to record deep tremor along the San Andreas Fault in central California. Left: recently discovered tremors (gold stars) and the location of the proposed stations, whose instrumentation will be used to study the behavior of faulting in the deep crust.

Free oscillations of the Earth: M 9.0 Tohoku earthquake
Seismogram slideshow. Link goes to page of all seismograms in the slideshow, with descriptions and more information.