Wednesday, January 27, 2010

Earthquakes continue to shake the Tristan Da Cunha Region - remote volcanic group of islands in S Atlantic Ocean

Earthquake List for 10-degree Map Centered at 40°S, 15°W

Update time = Wed Jan 27 14:00:04 UTC 2010


MAG
UTC DATE-TIME
y/m/d h:m:s
LAT
deg
LON
deg
DEPTH
km
Region
MAP 5.1 2010/01/27 12:31:36 -38.763 -15.721 10.0 TRISTAN DA CUNHA REGION
MAP 5.2 2010/01/27 11:20:36 -38.555 -15.911 9.9 TRISTAN DA CUNHA REGION
MAP 5.5 2010/01/26 15:22:05 -39.130 -15.850 10.0 TRISTAN DA CUNHA REGION

Tristan da Cunha is a remote volcanic group of islands in the south Atlantic Ocean, and also the name of the main island of that group. It is the most remote inhabited archipelago in the world, lying 2,816 kilometres (1,750 mi) from the nearest land, South Africa, and 3,360 kilometres (2,090 mi) from South America.

During World War II, the islands were used as a top secret Royal Navy weather and radio station codenamed HMS Atlantic Isle, to monitor U Boats (which needed to surface to maintain radio contact) and German shipping movements in the South Atlantic Ocean.

In 1958, as part of Operation Argus, the United States Navy exploded an atomic bomb 200 kilometres high in the upper atmosphere, 115 kilometres southeast of the main island.

In 1961, a volcanic eruption forced the evacuation of the entire population to wooden huts in the disused Pendell Army Camp in Merstham, Surrey, England. In 1962, a Royal Society expedition went to the islands to assess the damage, and reported that the settlement Edinburgh of the Seven Seas had been only marginally affected. Most families returned in 1963.