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Intensity 7 (震度7, Shindo-nana) is the highest level on the JMA seismic intensity scale, applied to earthquakes with an instrumental intensity (計測震度) of 6.5 or higher. [6] At Intensity 7, movement becomes nearly impossible without external support. [ 11 ]
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.
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.
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 or the Liedu scale used in China, meaning that the scale measures the intensity of an earthquake at a given location instead of measuring the energy an earthquake releases at its epicenter (its magnitude ...
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 ...
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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]