Earthquake Shakes ``Big Bend'' Region of North America-Caribbean Boundary Zone

Details Earthquake Shakes ``Big Bend'' Region of North America-Caribbean Boundary Zone Earthquake Shakes ``Big Bend'' Region of North America-Caribbean Boundary Zone

Feb 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004eostr..85...77m&link_type=abstract

EOS Transactions, AGU, Volume 85, Issue 8, p. 77-83

Physics

Seismology: Seismic Hazard Assessment And Prediction, Seismology: Seismicity And Seismotectonics

Scientific paper

At 12:45 pm on 22 September, a M6.5 earthquake severely shook the northern Dominican Republic on the island of Hispaniola. The earthquake caused extensive damage to buildings in the major cities of Puerto Plata and Santiago, along with landslides in outlying areas. The main shock was followed by a large aftershock of M5.1 1 hr and 45 min later. Unfortunately, one person died due to collapse of a building during the main shock, two elderly people died of heart attacks, and one person jumped out of a building and later died of injuries. Fortunately, two partially collapsed school buildings and several office buildings in Puerto Plata that were severely damaged were unoccupied at the time of the early morning main shock. Aftershocks ranging up to nearly M5 continued for over a month, alarming local inhabitants. The M6.5 earthquake is the strongest shock to affect the northern Dominican Republic since a series of thrust events ranging from M6.1-8.1 occurred offshore and northeast of the Dominican Republic between 1943 and 1953 [Dolan and Wald, 1998]. This article summarizes the tectonic setting of the recent earthquake, its focal mechanism and inferred fault plane, damage, and ongoing research.

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