Eerrie sirens rang out across parts of central Alaska Wednesday afternoon after a catastrophic 7.3-magnitude earthquake ...

The National Tsunami Warning Center has warned that the quake, which occurred at 12:55 p.m. local time, could generate ...

A 2.4-magnitude earthquake shook a South Carolina community Wednesday. The S.C. Emergency Management Division said in a ...

A moderately strong, 5.7-magnitude earthquake struck in Guatemala on Tuesday, according to the United States Geological ...

Here's what you need to know about how earthquakes are measured and what the scale of today's East Coast quake was.

The earthquake magnitude communicates its energy level, and the intensity communicates its strength based on its effects.

One of the most commonly known earthquake-measuring tools is the Richter Scale, but the system is no longer used today.

(WHTM) — Residents in Pennsylvania felt shaking Friday morning as a 4.8 magnitude earthquake struck New Jersey. One of the most commonly-known earthquake measuring tools is the Richter Scale ...