UTC time | 1946-08-04 17:51:10 |
---|---|
ISC event | 898498 |
USGS- ANSS | ComCat |
Local date | August 4, 1946 |
Local time | 13:51 |
Magnitude | 7.8
Mw 8.1 Ms |
Depth | 15.0 km (9.3 mi) [1] |
Epicenter | 19°12′00″N 69°18′58″W / 19.2°N 69.316°W |
Areas affected | Dominican Republic |
Max. intensity | MMI IX (Violent) [2] |
Peak acceleration | 0.4 g (est) [2] |
Tsunami | Yes |
Casualties | 2,550 |
The 1946 Dominican Republic earthquake occurred on August 4 at 17:51 UTC near Samaná, Dominican Republic. The mainshock measured 7.8 on the moment magnitude scale [3] and 8.1 on the surface wave magnitude scale. [4] An aftershock occurred four days later on August 8 at 13:28 UTC with a moment magnitude of 7.0. [5] A tsunami was generated by the initial earthquake and caused widespread devastation across Hispaniola. The tsunami was observed in much of the Caribbean and the northwestern Atlantic Ocean. [6] [7] [8] [9]
A small tsunami was also recorded by tide gauges at San Juan in Puerto Rico, Bermuda and in the United States at Daytona Beach, Florida and Atlantic City, New Jersey. [10]
UTC time | 1946-08-04 17:51:10 |
---|---|
ISC event | 898498 |
USGS- ANSS | ComCat |
Local date | August 4, 1946 |
Local time | 13:51 |
Magnitude | 7.8
Mw 8.1 Ms |
Depth | 15.0 km (9.3 mi) [1] |
Epicenter | 19°12′00″N 69°18′58″W / 19.2°N 69.316°W |
Areas affected | Dominican Republic |
Max. intensity | MMI IX (Violent) [2] |
Peak acceleration | 0.4 g (est) [2] |
Tsunami | Yes |
Casualties | 2,550 |
The 1946 Dominican Republic earthquake occurred on August 4 at 17:51 UTC near Samaná, Dominican Republic. The mainshock measured 7.8 on the moment magnitude scale [3] and 8.1 on the surface wave magnitude scale. [4] An aftershock occurred four days later on August 8 at 13:28 UTC with a moment magnitude of 7.0. [5] A tsunami was generated by the initial earthquake and caused widespread devastation across Hispaniola. The tsunami was observed in much of the Caribbean and the northwestern Atlantic Ocean. [6] [7] [8] [9]
A small tsunami was also recorded by tide gauges at San Juan in Puerto Rico, Bermuda and in the United States at Daytona Beach, Florida and Atlantic City, New Jersey. [10]