The 1946 Dominican Republic earthquake refers to the earthquake of magnitude 8.0 that hit Samaná, Dominican Republic on August 4, 1946 at 17:51 UTC. An aftershock occurred four days later on August 8 at 13.28 UTC with a magnitude of 7.6.
The earthquake killed around 100, but left some 20,000 people homeless.[1] The death toll was unusually low as it coincided with a holiday in the afternoon, when most people were outdoors. It caused severe damage in the northern Dominican Republic from Samana to Santiago and Puerto Plata. Slumping and sand blows were observed in the Yaque del Norte and Yuna River Valleys.
The earthquake was felt strongly in parts of Haiti and Puerto Rico, and to a lesser extent in the Virgin Islands and eastern Cuba. The earthquake also caused a tsunami which struck at Matanza, near Nagua (Julia Molina) where a 2.5 m (8 ft) - 4-5m (13–16 ft) high wave drowned a number of people and affected an area of land several kilometres inland. Tsunami associated with the quake killed 1600-1800 people, for a total of about 2550 fatalities.[2][3] A small tsunami was also recorded by tide gauges at San Juan, Puerto Rico, Bermuda and in the United States at Daytona Beach, Florida and Atlantic City, New Jersey.[4]
http://en.wikipedia.org/wiki/1946_Dominican_Republic_earthquake
Der Puerto Rico Graben
Erdbebenzone zwischen der nordamerikan. und der carib. Platte
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