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Intensity 7 (震度7, Shindo-nana) is the highest level on the JMA seismic intensity scale. At Intensity 7, movement at will is almost impossible, and people may be thrown through the air. [3] The intensity was created following the 1948 Fukui earthquake. It was observed for the first time in the 1995 Great Hanshin earthquake.
This earthquake occurred on Dec. 7, 1944, at 13:35 local time (04:35 UTC). Its moment magnitude was 8.1 and it was felt with a maximum intensity of 5 on the Shindo scale (or VII, "Severe", on the Mercalli intensity scale). It struck the provinces along the coast of the Tōkai region, causing serious damage and triggering a tsunami.
The Japan Meteorological Agency said it recorded a maximum seismic intensity of 7 (Shindo 7), the highest level on its seismic intensity scale, [49] the first time that an earthquake of that intensity had been observed in the country since 2018. [50] [51] It corresponded to a maximum Modified Mercalli intensity of X–XI (Extreme). [15]
Pages in category "Shindo 7 earthquakes" The following 10 pages are in this category, out of 10 total. This list may not reflect recent changes. 0–9.
The area is associated with large earthquakes in 1662 (M w 7.9), 1941 (M w 8.0), 1961 (M w 7.5), [3] 1968 (M w 7.5) and two in 1996 (M w 6.6 [4] and 6.7 [5]). The Hyūga Sea is interpreted as a transition zone between the highly coupled Nankai Trough in the northeast and weakly coupled Ryukyu Trench further southwest. [6]
It had a maximum JMA intensity of Shindo 6+ to Shindo 7 while on the Mercalli intensity scale, earned a rating of VIII (Severe). [7] The earthquake was followed by multiple aftershocks within less than an hour, three of which registering magnitude 5.3. The earthquake itself has been considered an aftershock of the 2011 Tōhoku earthquake which ...
It was the first time that an earthquake in Japan was officially measured at a seismic intensity (shindo in Japanese) of the highest Level 7 on the scale of Japan Meteorological Agency (JMA). After the earthquake, seismic intensity observation in Japan was fully mechanized (from April 1996) and JMA seismic intensity Levels 5 and 6 were each ...
Japan had experienced 900 aftershocks after the M9.1 earthquake on March 11, 2011 with about 60 aftershocks being over magnitude 6.0 and three over magnitude 7.0. For conciseness, only earthquakes with magnitudes greater than 7.0 or an intensity greater than lower-6 on the shindo scale are listed here.