1984 San Pedro Basin earthquake
  Santo Domingo La Romana  | |
| UTC time | 1984-06-24 11:17:14 |
|---|---|
| ISC event | 551495 |
| USGS-ANSS | ComCat |
| Local date | 24 June 1984 |
| Local time | 07:17:14 |
| Magnitude | 6.7 Mw[1] |
| Depth | 35 km[1] |
| Epicenter | 17°58′N 69°18′W / 17.97°N 69.3°W[1] |
| Type | Thrust |
| Areas affected | Dominican Republic |
| Total damage | Limited[2] |
| Max. intensity | MMI VII (Very strong)[3] |
| Casualties | 5 deaths |
The 1984 San Pedro Basin earthquake occurred on June 24 at 07:17:14 local time with a moment magnitude of 6.7 and a maximum Mercalli intensity of VII (Very strong). The event occurred off the southern coast of the Dominican Republic and resulted in an estimated five fatalities.
Tectonic setting
[edit]The northern boundary of the Caribbean plate is a diffuse zone of varied fault types. The Muertos Trough marks the southern portion of this zone of deformation with north dipping convergence.[4]
Earthquake
[edit]This thrust earthquake occurred on a shallow and north-dipping fault and, at the time, it was the largest instrumentally recorded event in the Los Muertos Trough.[5]
Intensity
[edit]The United States Geological Survey estimated that more than 227,000 people were exposed to intensity VII (Very strong) shaking and more than 2.8 million experienced intensity VI (Strong) shaking.[3]
Aftershock
[edit]Five hours after the mainshock, a destructive 5.2 Mw aftershock occurred about 5–10 miles to the northeast. Five deaths are also attributed to this event.[6]
See also
[edit]References
[edit]- ^ a b c ISC (2015), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 2.0, International Seismological Centre
- ^ National Geophysical Data Center / World Data Service (NGDC/WDS) (1972), Significant Earthquake Database (Data Set), National Geophysical Data Center, NOAA, doi:10.7289/V5TD9V7K
- ^ a b EXPO-CAT Earthquake Catalog, Version 2007-12, United States Geological Survey, December 1, 2008
- ^ Yeats, R. (2012), Active Faults of the World, Cambridge University Press, p. 147, ISBN 978-0521190855
- ^ Dolan, J. F.; Mullins, H. T.; Wald, D. J. (1998), "Active tectonics of the north-central Caribbean: Oblique collision, strain partitioning, and opposing subducted slabs", Active Strike-slip and Collisional Tectonics of the Northern Caribbean Plate Boundary Zone, Special Paper 326, Geological Society of America, p. 42, ISBN 978-0813723266
- ^ PAGER-CAT Earthquake Catalog, Version 2008_06.1, United States Geological Survey, September 4, 2009
External links
[edit]- The International Seismological Centre has a bibliography and/or authoritative data for this event.
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