A map has shown an underwater fault line that could trigger a catastrophic earthquake that could cause a 100ft tsunami with ...

For hundreds of years, the Cascadia subduction zone has been quiet. But on Jan. 26, 1700, the earth shook. Japanese history records show an “orphan” tsunami traveled across the Pacific ...

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 ...