An undersea megathrust earthquake on March 11, 2011, that sent tsunami waves reaching 40.5 meters at Miyako against the Tohoku coast and triggered the Fukushima Daiichi nuclear accident. The most thoroughly instrumented great earthquake in history, it reshaped how seismologists model how much of a subduction zone can rupture at once. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
Facts
Magnitude or ScaleMoment magnitude 9.0 to 9.1, the most powerful earthquake ever recorded in Japan 1 LocationOff the Pacific coast of the Tohoku region, about 72 kilometers east of the Oshika Peninsula, Japan 1 Disputed
Death Toll19,759 confirmed dead and 2,553 still listed as missing, per the 2021 official figures 1 Official counts were revised for a decade as missing persons cases resolved; totals differ by whether the missing and later indirect deaths are included. Connections
Associated With
The 2011 Tohoku earthquake and tsunami is among the most thoroughly documented tsunami disasters.
Caused By
A megathrust rupture where the Pacific Plate subducts beneath the plate carrying northern Honshu.
Source 2011 Tohoku Earthquake and Tsunami (Wikipedia)
In Discipline
Source 2011 Tohoku Earthquake and Tsunami (Wikipedia)
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Found In
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Source 2011 Tohoku Earthquake and Tsunami (Wikipedia)Lead paragraph of the cited Wikipedia articleQuote, Lead paragraph of the cited Wikipedia article
On 11 March 2011, at 14:46:24 JST (13:46:24 Singapore Standard Time) (05:46:24 UTC), a Mw 9.0–9.1 undersea megathrust earthquake occurred in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region of Japan.
Sources
1. 2011 Tohoku Earthquake and Tsunami (Wikipedia)
Wikimedia FoundationLead section
On 11 March 2011, at 14:46:24 JST (13:46:24 Singapore Standard Time) (05:46:24 UTC), a Mw 9.0-9.1 undersea megathrust earthquake occurred in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region of Japan.
In Group: Great Historical Earthquakes, Lead sentence
On 11 March 2011, at 14:46:24 JST (13:46:24 Singapore Standard Time) (05:46:24 UTC), a Mw 9.0-9.1 undersea megathrust earthquake occurred in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region of Japan.
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