Earthquake Magnitude Scale Magnitude Earthquake Effects Estimated Number Each Year 2.5 or less Usually not felt, but can be recorded by seismograph. Millions 2.5 to 5.4 Often felt, but only causes ...

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 ...

The epicenter was about 4.6 miles north of Point Dume, in the mountains above Malibu's city limits. It's the seventh ...

One of the most commonly known earthquake-measuring tools is the Richter Scale, but the system is no longer used today. In fact, the Richter scale was replaced in the 1970s by other magnitude ...

A minor, 2.3-magnitude earthquake struck in Connecticut on Wednesday, according to the United States Geological Survey. The ...

Richter Scale The earthquake rating system known as the Richter scale traditionally measures the magnitude of earthquakes based on the energy released during seismic events. Each whole-number ...

Damascus, SANA –Two earthquakes of 3.3 and 3.6 on the Richter scale hit northeastern Lattakia city on Wednesday. The National Earthquake Center said that an earthquake of 3.3 on Richter scale ...

Aside from the 47-percent probability of Tokyo being hit by a major quake, Nagoya was given a 46-percent rating and Osaka a 30-percent one. Naoshi Hirata, who heads the Earthquake Research ...