El temblor de Huajuapan de León, Oaxaca, México, del 24 de octubre de 1980

The analysis of arrival times and first motion data indicates that the focus of the October 24, 1980 (14:54 GMT; 6.6 mb; 7.0 Ms) Huajuapan de León, Oaxaca earthquake islocated at 18.03°N and 98.20°W and 65 km deep inside the Continental Plate. The main rupture occurred as normal faulting probably al...

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Bibliographic Details
Authors: Yamamoto, Jaime, Jiménez, Zenón, Mota, Reynaldo
Format: article
Status:Published version
Publication Date:1984
Country:México
Institution:UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO
Repository:Geofísica Internacional
Language:Spanish
OAI Identifier:oai:revistagi.geofisica.unam.mx:article/1023
Online Access:http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1023
Access Level:Open access
Keyword:Sismicidad
Terremotos
Huajuapan de León-Oaxaca
Seismicity
Earthquakes
Description
Summary:The analysis of arrival times and first motion data indicates that the focus of the October 24, 1980 (14:54 GMT; 6.6 mb; 7.0 Ms) Huajuapan de León, Oaxaca earthquake islocated at 18.03°N and 98.20°W and 65 km deep inside the Continental Plate. The main rupture occurred as normal faulting probably along a fault striking N 88º W and dipping approximately 26º toward NNE. The aftershock activity defines a 32 km long and 10 km wide elongated area oriented NW-SE. The seismic intensity distribution shows a clear amplification toward the sou theast as compared to the north due possibly to an energy focusing phenomenon, caused by the orientation of the fault and the rupture mechanism itself.