MELBOURNE, Australia -- A magnitude-6.6 earthquake struck in the South Pacific near the island nation of Samoa on Friday, but ...

The Pacific Northwest boasts an extensive network of more than 600 seismic monitoring stations that help researchers track ...

The quake occurred 440 kilometres (273 miles) southwest of the capital Apia at a depth of 314 kilometres (195 miles), the US Geological Survey said.

Japan's weather agency said Friday that a malfunction in the ocean-floor observation system off the Pacific coast, installed ...