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Three seismic traces showing the vertical vibration of the earth.

Three seismic traces showing the vertical vibration of the earth.
Three seismic traces showing the vertical vibration of the earth.
Three seismic traces showing the vertical vibration of the earth.
Three seismic traces showing the vertical vibration of the earth.
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598758
Cook, John E.
Three seismic traces showing the vertical vibration of the earth.
Illustration
01/01/1998
RAS fig6.jpg
Date is approximate.
Caption from Oceanus magazine, Vol. 41, No. 1, Pg. 36:
These seismic traces show the vertical vibration of the earth at Oahu (blue), OSN-1 (red), and southern California (green) caused by a magnitude 6.1 earthquake in Afghanistan on February 4, 1998. The earthquake event is the large amplitude arrival occurring in the middle of the traces. The left half of each trace shows the ambient noise prior to the event. In this figure the response at the OSN-1 observatory is better than at Oahu and comparable to Southern California.
Illustration by Jack Cook
© Woods Hole Oceanographic Institution
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