That scale is based on the intensity of the quake, or how you or a building would experience it, Alexandra Hatem, a research geologist at the USGS who worked on the U.S. National Seismic Hazard ...

According to CBS, the reason is that the Earth's crust over this region is much older, colder, and more healed versus out ...

Seismic Intensity (a.k.a. shindo) measures the degree of shaking at a certain point on the earth's surface as a number. The bigger the number, the bigger the tremor. This scale is used only in ...

Since 1987, MCEER, formerly the Multidisciplinary Center for Earthquake Engineering Research (MCEER) and the National Center for Earthquake Engineering Research ( NCEER), has produced over 600 ...

Nearly 2,200 earthquakes strong enough to be felt by humans have recently struck around a southwestern Japanese island chain.

The temblor occurred at 7.57 p.m. local time, measuring lower 5 on the Japanese seismic intensity scale of 7, said the Japan Meteorological Agency (JMA).

Five residents evacuated the island on July 9. Islanders who wished to evacuate, started doing so on July 4. 59 residents ...

TOKYO -- When an earthquake measuring a lower 5 or stronger on the 7-point Japanese seismic intensity scale is predicted, public broadcaster NHK airs an emergency earthquake alert chime on TV and ...

What is the EF scale? Since Feb. 1, 2007, the National Weather Service has used the Enhanced Fujita (EF) scale, an improved version of the scale designed by Dr. Tetsuya Theodore Fujita in 1971 to ...