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A seismogram recorded in Massachusetts, United States. The magnitude 9.1 (M w) undersea megathrust earthquake occurred on 11 March 2011 at 14:46 JST (05:46 UTC) in the north-western Pacific Ocean at a relatively shallow depth of 32 km (20 mi), [9] [56] with its epicenter approximately 72 km (45 mi) east of the Oshika Peninsula of Tōhoku, Japan, lasting approximately six minutes.
The March 2011 Sanriku earthquake was a foreshock of the 9.1 earthquake 2 days later. — — 10 [27] China, Yunnan: 5.5 10.0 VII The 2011 Yunnan earthquake damaged 12,000 homes, left 26 people dead and 313 injured. 26 313 11 [28] Japan, Tōhoku Region offshore 9.1 29.0 XI [29]
UTC time: 2011-04-11 08:16:12: ISC event: 16416735: USGS-ANSSComCat: Local date: 11 April 2011: Local time: 17:16 JST: Magnitude: 6.6 M w [1]: Depth: 13 km (8 mi) Epicenter: 1]: Type: Dip-slip: Areas affected: Japan: Max. intensity: MMI VIII (Severe) JMA 6−: Peak acceleration: 2.11 g 2071.7 Gal: Tsunami: No: Landslides: Yes: Casualties: 4 dead, 10 injured: A potent magnitude 6.6 M w ...
The magnitude 7.1 quake occurred off the country’s northeastern coast late Saturday, local time.
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, 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 ...
This is an alphabetically sorted list of cities and towns severely damaged by the 2011 Tōhoku earthquake and tsunami. Cities and towns listed here reported at least US$ 100,000 in damage or at least one death.
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.