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A handout map released by the US Geological Survey (USGS) on 14 October 2014 shows the area off the coast of El Salvador where a 7.4 magnitude struck at a depth of 70.5 km on 14 October 2014. The Pacific Tsunami Warning Center issued a threat warning saying that hazardous Tsunami waves are possible for coasts located within 300 km of the earthquake epicenter. Image Credit: USGS HANDOUT

SAN SALVADOR: A powerful earthquake of magnitude 7.4 struck in the Pacific off El Salvador late Monday, prompting a tsunami warning, US government agencies said.

The quake hit 170 kilometers southeast of the capital San Salvador, at a depth of 70 kilometers, the USGS said.

The US Pacific Tsunami Warning Center issued a warning for coasts located within 300 kilometres of the epicenter.

The shaking of the earth was felt as far as the capital of Nicaragua, Managua, and other cities, but no immediate injuries or damage were reported, officials said.

Electricity and cell phone service in some areas were cut off.