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| UTC time | 2016-11-21 20:59:49 |
|---|---|
| ISC event | 615057144 |
| USGS-ANSS | ComCat |
| Local date | November 22, 2016 |
| Local time | 05:59:49 JST |
| Magnitude | 7.4 Mw |
| Depth | 11.4 km (7 mi) |
| Epicenter | 37°23′31″N 141°24′11″E / 37.392°N 141.403°E |
| Areas affected | Japan |
| Max. intensity | MMI VII (Very strong) JMA 5− |
| Tsunami | Up to 1.4 metres (4 ft 7 in) in Sendai |
| Aftershocks | 85[1][unreliable source?] |
| Casualties | 17 injured (3 serious) |
The 2016 Fukushima earthquake struck Japan east-southeast of Namie, Fukushima Prefecture at 05:59 JST on November 22 (20:59 Nov 21 UTC) with depth of 11.4 km (7.1 mi). The shock had a maximum intensity of VII (Very strong) on the Mercalli scale. The earthquake was initially reported as a 7.3 magnitude by Japan Meteorological Agency, and was later revised to 7.4, while the United States Geological Survey and GFZ Potsdam determined a magnitude of 6.9.
There were no deaths as a result of the earthquake, however seventeen people were injured; three of which were in critical condition.[2] Minor damage was caused, with reports of fires. The Fukushima Daini Nuclear Power Plant had one of its spent fuel cooling systems shut down briefly, though no measurable change in radiation levels was detected. A tsunami warning was issued with waves predicted up to 3 metres (9 ft 10 in), though actual waves were recorded between 1 metre (3 ft 3 in) and 2 metres (6 ft 7 in) in height.
- ^ Mochizuki (November 23, 2016). "Aftershocks occurred over 85 times by 11am of 23rd Nov after M7.4".
- ^ Ozaki, A.; Morita, T.; Nishikawa, Y.; Leppold, C.; Sawano, T.; Shimada, Y. (January 30, 2017). "Tsunami in 2011 to the earthquake in 2016 in Fukushima—are we better prepared?". QJM: An International Journal of Medicine. 110 (9): 543–544. doi:10.1093/qjmed/hcx031. ISSN 1460-2725. PMID 28339600.