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The earthquake [62]) was a powerful magnitude 6.6 earthquake [63] [64] that occurred 10:13 a.m. local time (01:13 UTC) on July 16, 2007, in the northwest Niigata region of Japan. [63] Eleven deaths and at least 1,000 injuries have been reported, and 342 buildings were completely destroyed, mostly older wooden structures.
The 1946 Nankai earthquake (昭和南海地震 Shōwa Nankai jishin) was a great earthquake in Nankaidō, Japan. It occurred on December 21, 1946, at 04:19 JST (December 20, 19:19 UTC). [1] The earthquake measured between 8.1 and 8.4 on the moment magnitude scale, and was felt from Northern Honshū to Kyūshū.
It was in approximately the same location as the 1896 Sanriku earthquake and it occurred far enough away from the town that shaking did little damage. Approximately three hours after the main shock there was a magnitude 6.8 aftershock , followed by 76 more aftershocks (with a magnitude of 5.0 or greater) over a period of six months. [ 3 ]
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 had occurred almost ten years prior. [8] The earthquake left three people dead, and at least 186 injured.
A future great earthquake involving rupture along this and possibly other segments has been proposed as a major risk for the southern coast of Honshu. [6] In 1999, the likelihood of the occurrence of a great earthquake in the Tokai area in the 2000–2010 period was estimated to be in the range of 0.35–0.45. [7]
A magnitude 5.1 earthquake struck Mie Prefecture, Japan on April 15 at a depth of 15.7 km (9.8 mi). 12 people were injured and 63 buildings were damaged in the Mie-Nara-Shiga area. [12] A magnitude 6.1 earthquake struck Kavieng, Papua New Guinea on April 21 at a depth of 407.4 km (253.1 mi).
The Japan Meteorological Agency stated it was an aftershock of the 2011 Tōhoku earthquake. [7] [8] An intensity of VII is strong enough to cause damage to unsupported buildings and move heavy furniture. [9] The 2011 Tōhoku earthquake increased stress on the normal fault along Honshu's eastern coast on which the 2016 earthquake occurred.
Nankai earthquakes are caused by ruptures in the west zone (A and/or B segments) of the Nankai megathrust. The Nankai earthquakes (南海地震, Nankai jishin) are major megathrust earthquakes that affect the Nankaidō (Southern Sea Circuit) region of Japan, west of the Tōnankai region (Southeastern Sea) and Tōkai region (Eastern Sea), and are caused by ruptures in the Nankai zone of the ...