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The Japan Meteorological Agency (JMA) Seismic Intensity Scale [1] (known in Japan as the Shindo seismic scale) [2] is a seismic intensity scale used in Japan to categorize the intensity of local ground shaking caused by earthquakes. Map of Japan showing the distribution of maximum JMA Seismic Intensities by prefecture for the 2011 Tōhoku ...
In Japan, for shallow (depth < 60 km) earthquakes within 600 km, the Japanese Meteorological Agency calculates [2] a magnitude labeled MJMA, M JMA, or M J. (These should not be confused with moment magnitudes JMA calculates, which are labeled M w (JMA) or M (JMA), nor with the Shindo intensity scale.)
In Japan, the Shindo scale is commonly used to measure earthquakes by seismic intensity instead of magnitude. This is similar to the Modified Mercalli intensity scale used in the United States, the Liedu scale used in China or the European Macroseismic Scale (EMS), meaning that the scale measures the intensity of an earthquake at a given location instead of measuring the energy an earthquake ...
A 7.1-magnitude earthquake occurred off the coast of Japan's Miyazaki prefecture on August 8, 2024 ... A 7.1-magnitude earthquake rocked the southern coast of Japan on Thursday, Aug. 8, prompting ...
A strong earthquake with a preliminary magnitude of 7.1 has rocked the coast of southern Japan, according to the U.S. Geological Survey. ... very high on the Japanese shake scale, which goes from ...
Japan’s Meteorological Agency warns major quakes could hit the area over the next week Japan earthquake – latest: Aftershocks continue in quake zone as death toll rises to 64 Skip to main content
On January 13, 2025, at 9:19pm JST, a 6.9 M JMA earthquake struck less than 10 km (6.2 mi) away from the August 8, 2024 earthquake at a depth of 30 km (19 mi), causing tremors recorded as a 5- on the JMA seismic intensity scale [15] and an observed 20cm tsunami in Miyazaki Prefecture.
Japan accounts for about one-fifth of the world's earthquakes of magnitude 6 or greater. On March 11, 2011, the northeast coast was struck by a magnitude 9 earthquake, the strongest in Japan on ...