Earthquakes and seismic activity often happen with sudden movements underground with tectonic plates. Seismographs are used by scientists to measure the time, location and strength of an earthquake.

There are a number of ways to measure the magnitude of an earthquake. Most scales are based on the amplitude of seismic waves recorded on seismometers. These scales account for the distance between ...

(WHTM) — Residents in Pennsylvania felt shaking Friday morning as a 4.8 magnitude earthquake struck New Jersey. Earthquake reported in New Jersey, tremors felt in Pennsylvania One of the most commonly ...

GOLDEN, Colo. (CBS4)- It's a complicated formula for calculating the severity of earthquakes. But we get it… kind of. Still, it has generally served us well: 5.4, 6.2, 8.0, 9.1. You get the point.

Recently, the people of the city of Kolkata witnessed the earthquake for a short time; individuals ran out of high-rise ...

Shortly after it occurred, scientists said there was a slight chance Monday’s magnitude-4.4 earthquake in Los Angeles may have been a “foreshock” of a bigger one yet to come. That’s obviously getting ...

This weekend, a 3.3-magnitude earthquake rattled San Francisco ever so slightly. The small quake, like so many before it, passed, and San Franciscans went back to conveniently ignoring their seismic ...

(WHTM) – Residents along much of the East Coast 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 ...