Here's what we know about the major earthquake that struck the Pacific Island nation and triggered tsunami warnings.

An earthquake with a preliminary magnitude of 5.5 hit Guam around 3:48 p.m. Tuesday, based on U.S. Geological Survey data.

In the 20 years since the Indian Ocean calamity, the Pacific Tsunami Warning Center started providing warning services to Indian Ocean countries. Scientists identified other high-risk zones around ...

Two major tsunami that swamped the east coast have been labelled a "missed opportunities", so what do we need to change to be ...

The Pacific Tsunami Warning Center, based in Hawaii, was only established by the UN in 1965, five years after a magnitude 9.5 earthquake off the coast of Chile generated a tsunami that killed ...

A view of Pacific Coastline in Pacifica ... detected an earthquake at 10:44 a.m. PT to when the NWS National Tsunami Warning Center issued the Tsunami Warning five minutes later at 10:49 a.m ...

The Pacific Tsunami Warning center in their bulletin said that, "Tsunami waves have been observed." They forecast waves reaching heights of up to one metre (about three feet) in certain coastal ...

The offshore earthquake triggered a tsunami warning that affected about 5.3 million people in California and Oregon but was ended shortly before noon by the National Tsunami Warning Center.

JAPAN has issued a tsunami advisory after a magnitude 6.9 earthquake struck the country on Monday. The quake was at a depth of 23 miles and mainly hit the southwestern Kyushu region, said ...

A magnitude 7.3 earthquake struck Tuesday off the coast of the Pacific island state of Vanuatu, the US Geological Survey said, triggering tsunami waves. The tremor was registered at a depth of ...