The locations and characteristics of the aftershocks of the October 3, 1974, Peruvian earthquake

Locations of 113 aftershocks of the magnitude-7.6 (M_s) Peruvian earthquake of October 3, 1974, were determined from data obtained by a ten-station network installed along the coastal area between lat 11° and 14° S. These epicenters define an irregular shaped zone approximately 210 km long by 150 km wide, the oceanward or long side of which trends subparallel with the coast and extends between about lat 12° and 13.8° S. The distribution of hypocenters ranges in depth from near surface to roughly 65 km and is indicative of shallow underthrusting. Focal mechanisms are consistent with low angle thrust faulting. A b value of approximately 0.90 was determined for earthquakes within the Peruvian shallow seismic belt (1963-1975) and the aftershock sequence.

Name thesis:degree_name

Master of Science

Level thesis:degree_level

masters

Discipline thesis:degree_discipline

Geophysics

Department dc:contributor.department

Geophysics

Grantor dc:publisher

Virginia Polytechnic Institute and State University

Year dc:date.issued

1977

Author dc:creator

• Langer, C. J.

Statement dc:rights

• In Copyright

Licence dc:rights.uri

• http://rightsstatements.org/vocab/InC/1.0/

Language dc:language.iso

en

Handle dc:identifier.uri

http://hdl.handle.net/10919/64634

OAI identifier oai:identifier

oai:vtechworks.lib.vt.edu:10919/64634