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

A minor, 3.3-magnitude earthquake struck in Northern California on Monday, according to the United States Geological Survey. The temblor happened at 6:37 p.m. Pacific time about 16 miles west of Los ...

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.

While the Richter Scale is widely recognized, modern seismologists prefer the moment magnitude scale for accurate measurement of earthquakes.

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

The magnitude 3.8 earthquake that happened Monday morning is one of the most powerful earthquakes to hit Maine in the past 30 years.

(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 ...