An earthquake with a magnitude of 6.7 struck off the Solomon Islands on Tuesday, according to the United States Geological Survey (USGS), the second powerful tremor in the islands to Australia's north in less than two weeks .

SAN FRANCISCO, Dec 8: The United States Geological Survey is reporting a 6.5 magnitude earthquake off the coast of Northern California in the Pacific Ocean.

WASHINGTON, Aug 20: A 7.4-magnitude quake shook the southern Atlantic Ocean early Friday, the US Geological Survey said, with an epicenter 195 miles (316 kilometers) from islands hosting a British Antarctic research station.