Science: Earthquake Basics

Ground Ruptures

Faults can occur along plate boundaries, such as in coastal California, or within plates, such as in the New Madrid fault zone.

We can see the physical effects of faults when the ground ruptures, or breaks apart, at the surface. Buildings should not be located over active fault traces, lest they be torn apart, as shown below.

Ground rupture. Source: USGS
Building destroyed by ground rupture (fault runs from bottom right of picture toward upper left). Source: UC Berkeley