The quake prompted a brief “Tsunami Threat” for Tonga ... also prompt U.S.G.S. scientists to update the shake-severity map. An aftershock is usually a smaller earthquake that follows a ...

The monster earthquake and ensuing tsunami that ravaged Japan in March 2011 left behind a ton of floating debris in its wake—25 million tons to be exact. And now that giant mass of garbage ...

A tsunami warning has been lifted for Tonga after a strong 7.1 magnitude earthquake struck near the Pacific Island country. The Pacific Tsunami Warning Center initially warned of potential ...

Though shunted out of the spotlight by other news events during that period, they are nevertheless notable — containing several major updates from earlier tsunami inundation maps that were ...

UPDATE: As of 8 p.m, the National Tsunami Warning Center has cancelled a tsunami advisory for the northern California coast, including the Bay Area, the National Weather Service tweeted.