Ross Stein, a geophysicist with the USGS, explains the connections between quakes and tsunamis.

Local doctors have recently returned from Haiti where the disaster continues. 2 min, 56 sec]

Hurricane Sandy tore through New York's Fire Island, setting off debate about coastal management.

In this video, Paul Andersen explains how natural disasters (like earthquakes, tsunamis, volcanoes and flooding) have affected and will continue to affect humans on the planet. Many of the natural hazards (like volcanoes and storms) can...