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Teleseisms

(A teleseism is a record of an earthquake made by a seismograph at a great distance.)

This is the spectrogram from a magnitude 7.7 earthquake in Sumatera on June 4, 2000.


 
 
 
 
 
 
 
 
 
 
 
 
 
 
U.S. Geological Survey, Earthquake Hazards Program
URL http://quake.wr.usgs.gov/recent/helicorders.html
Contact:webmaster@ehznorth.wr.usgs.gov
Last modification: August 14, 2000 (jhl)