This map shows the predicted (theoretical) travel times, in minutes, of the compressional (P) wave from the earthquake location to points around the globe. The travel times are computed using the spherically-symmetric IASP91 reference earth velocity model. The heavy black lines shown are the approximate distances to the P-wave shadow zone (103 to 120 degrees).
99/07/09 01:20:57 24.76S 70.45W 40.4 5.6Mb
NEAR COAST OF NORTHERN CHILE