Earthquake

A small earthquake shook the ground near Wakonda, South Dakota. We ask state geologist Tim Cowman what causes these quakes. One cause goes all the way back to the ice age.

Dr. Gerard Jacobs is the author of the upcoming book “Community Based Psychological First Aid: A Practical Guide to Helping Individuals and Communities…

On April 25, 2015, a devastating earthquake rocked Nepal. As it ripped across the Himalayas, it wiped out villages and left thousands dead. NOVA's…

An array of seismographs positioned throughout the former Homestake Mine can detect earthquakes that happen on the other side of the planet.The NSF funded…