A first report on the Petatlan, Guerrero, Mexico Earthquake of 14 March 1979
Por:
Meyer R.P., Pennington W.D., Powell L.A., Unger W.L., Guzmán M., Havskov J., Singh S.K., Valdés C., Yamamoto J.
Publicada:
1 ene 1980
Resumen:
A major earthquake, Ms = 7.6, occurred off the southern coast of Mexico near the town of Petatlan on 14 March 1979. Data recorded just before, during, and just after the event (a subset of a large data set extending from six weeks before to four weeks after the event) by local recorders including wide?dynamic?range instruments indicates that the earthquake ruptured a 50?km?long segment of the Middle American subduction zone, closely filling a seismic gap which was last ruptured by a major earthquake (Ms = 7.5) in 1943. Since recurrence times for large events in this general area are highly variable, the area remains one of high seismic risk, and provides a focus for continuing investigation of the segmentation in the subduction process which is implied by the seismic gap hypothesis. Copyright 1980 by the American Geophysical Union.
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