The Japan Meteorological Agency has a unique seismic scale ... movement in level 1. Zero intensity is detected by seismometers but not perceptible to people. The Great East Japan Earthquake ...

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 Felt by many indoors, few outdoors. May feel ...

Using this scale, a magnitude 5 earthquake would result in ten times the level of ... to estimate its intensity. The Mercalli scale was designed to do just that The original scale was invented by ...

Earlier this month, an earthquake of magnitude ... by tremors of 6-minus or above on the Japanese intensity scale of zero to 7 -- about the same level as the one that hit Osaka.

The weak shaking felt across the region is defined by the Modified Mercalli Intensity Scale as being ... The California earthquake was "completely unrelated to Japan," Jones wrote.

It explains the severity of the temblor's shaking and its effects on people and the environment, according to the California Earthquake Authority. The Modified Mercalli Intensity scale shows how ...

Thousands of Hongkongers were awakened in the wee hours of Monday morning by a 4.1 magnitude earthquake ... intensity was estimated to be a IV on the Modified Mercalli Intensity Scale. At that ...