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| UTC time | 2021-03-20 09:09:45 |
|---|---|
| ISC event | 620172298 |
| USGS-ANSS | ComCat |
| Local date | 20 March 2021 |
| Local time | 18:09:45 |
| Magnitude | 7.0 Mw (USGS) 6.9 MJMA (JMA) |
| Depth | 43.0 km (USGS) 60.0 km (JMA) |
| Epicenter | 38°28′30″N 141°36′25″E / 38.475°N 141.607°E |
| Fault | Japan Trench |
| Total damage | ¥63.4 billion ($550 million USD)[1] |
| Max. intensity | MMI VII (Very strong) JMA 5+ |
| Casualties | 11 injured[2] |
On March 20, 2021 at 18:09 JST (09:09 UTC). The magnitude 6.9 or 7.0 earthquake struck offshore east of Tōhoku, Japan at a depth of 54.0 kilometers (33.6 mi) to 60 kilometers (37 mi).[3][4] It had a maximum JMA intensity of Shindo 5+ while on the Mercalli intensity scale, it earned a rating of VII (Very strong).[5] Power outages and some slight damage in Miyagi was reported.[6]
A press release by the Japan Meteorological Agency stated that the earthquake was an aftershock of the 2011 Tōhoku earthquake and tsunami from ten years prior.[7][8]
- ^ National Geophysical Data Center / World Data Service (NGDC/WDS) (2021). "Significant Earthquake Database" (Data Set). National Geophysical Data Center, NOAA. doi:10.7289/V5TD9V7K.
- ^ "宮城県沖を震源とする地震による被害及び 消防機関等の対応状況（第６報" (PDF). Fire and Disaster Management Agency Disaster Countermeasures Headquarters (in Japanese). 22 March 2021. Retrieved 22 March 2021.
- ^ "M 7.0 - 27 km ENE of Ishinomaki, Japan". USGS-ANSS. USGS. Retrieved 20 March 2021.
- ^ "Earthquake Information". Japan Meteorological Agency. JMA. Retrieved 20 March 2021.
- ^ "地震情報". tenki.jp (in Japanese). 20 March 2021. Retrieved 22 March 2021.
- ^ "Power outages hit part of Japan's Miyagi prefecture following quake, utility says". Reuters. 20 March 2021. Retrieved 20 March 2021.
- ^ "令和３年３月20日18時09分頃の宮城県沖の地震について －「平成23年（2011年）東北地方太平洋沖地震」について（第91報）－". Japan Meteorological Agency. Retrieved 21 March 2021.
- ^ "Seismic intensity 5+ in Miyagi, M6.9 Shinkansen temporarily suspended" (in Japanese). Nikkei. 21 March 2021. Retrieved 21 March 2021.