I Felt by very few people; barely noticeable. II Felt by a few people, especially on upper floors. III Noticeable indoors, especially on upper floors, but may not be recognized as an earthquake. IV ...

Earthquakes are measured using seismographs, which monitor the seismic waves that travel through the Earth after an earthquake strikes. Scientists used the Richter Scale for many years but now largely ...

The earthquake occurred at a depth of 6.2 miles and had an estimated intensity of VI on the modified Mercalli intensity scale.

MILLEDGEVILLE, Ga. — No, it wasn’t an early April Fools’ Day prank, a low-magnitude earthquake really did rumble the area late Sunday night. The United States Geological Survey (USGS) reported that a ...

When the Cape Mendocino earthquake struck on April 25, 1992, magnitude was not the only parameter of interest to seismologists. Until Charles Richter developed a magnitude scale, the primary method of ...