May 20, 2021 at 05:27:00 JST
Off the Coast of Iwate Prefecture · M4.1 · Shindo 2
岩手県沖
Places with the strongest observed Shindo
These municipalities had the highest station readings in this report. Open a place to compare this earthquake with its local history.
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Shindo readings and epicentre
Each numbered marker is an actual station reading. The orange M marker shows the epicentre.
Observed Shindo by station
These are actual readings reported at JMA and partner stations, not estimates.
Scroll horizontally to see the full table.
| Shindo | Station | Prefecture | Distance from epicentre |
|---|---|---|---|
| 2 | Hashikami Town階上町道仏 | Aomori | 58.0 km |
| 2 | Hachinohe City八戸市湊町 | Aomori | 67.5 km |
| 2 | Hachinohe City八戸市内丸 | Aomori | 69.8 km |
| 2 | Karumai Town軽米町軽米 | Iwate | 71.8 km |
| 2 | Hachinohe City八戸市南郷 | Aomori | 73.0 km |
| 2 | Kunohe Village九戸村伊保内 | Iwate | 77.7 km |
| 2 | Morioka City盛岡市薮川 | Iwate | 107.6 km |
| 1 | 岩手洋野町種市 | Iwate | 49.4 km |
| 1 | Kuji City久慈市川崎町 | Iwate | 50.4 km |
| 1 | Noda Village野田村野田 | Iwate | 52.0 km |
| 1 | Kuji City久慈市長内町 | Iwate | 52.0 km |
| 1 | Kuji City久慈市枝成沢 | Iwate | 54.6 km |
| 1 | 岩手洋野町大野 | Iwate | 59.3 km |
| 1 | Hachinohe City八戸市島守 | Aomori | 67.0 km |
| 1 | 青森南部町苫米地 | Aomori | 78.4 km |
| 1 | Miyako City宮古市田老 | Iwate | 78.5 km |
| 1 | Kuzumaki Town葛巻町消防分署 | Iwate | 82.7 km |
| 1 | Kuzumaki Town葛巻町役場 | Iwate | 83.4 km |
| 1 | Misawa City三沢市桜町 | Aomori | 84.7 km |
| 1 | Gonohe Town五戸町古舘 | Aomori | 85.4 km |
| 1 | 青森南部町沖田面 | Aomori | 86.6 km |
| 1 | Ichinohe Town一戸町高善寺 | Iwate | 87.6 km |
| 1 | Sannohe Town三戸町在府小路町 | Aomori | 88.3 km |
| 1 | Kuzumaki Town葛巻町葛巻元木 | Iwate | 94.7 km |
| 1 | Tohoku Town東北町上北南 | Aomori | 95.4 km |
| 1 | Ninohe City二戸市浄法寺町 | Iwate | 100.0 km |
| 1 | Iwate Town岩手町五日市 | Iwate | 104.4 km |
| 1 | Miyako City宮古市区界 | Iwate | 112.7 km |
| 1 | Morioka City盛岡市渋民 | Iwate | 114.0 km |
| 1 | Hachimantai City八幡平市田頭 | Iwate | 116.8 km |
| 1 | Morioka City盛岡市山王町 | Iwate | 124.3 km |
| 1 | Morioka City盛岡市馬場町 | Iwate | 125.2 km |
Report updates
Status, time and revision available in the stored report. Field-by-field differences may not be retained.
- Confirmed
Revision 1 · p2pquake
Sources and bulletins
Multiple source bulletins do not necessarily represent multiple corrections.
- P2PQUAKEIssued: May 20, 2021 at 05:30:38Received: July 31, 2026 at 00:28:57
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Understand this earthquake report
Read Shindo, magnitude and JMA information in the right context.
A guide to event and issue times, hypocentre, depth, Shindo, tsunami information, preliminary reports and corrections.
Read guide →5 min readWhat does earthquake depth mean?A plain-language guide to hypocentre depth and why shallow and deep earthquakes can feel very different.
Read guide →5 min readMagnitude vs Shindo: what is the difference?Magnitude describes the size of an earthquake at its source; Shindo describes shaking at a place. Learn why they are not interchangeable.
Read guide →6 min readCan every earthquake cause a tsunami?What creates a tsunami, why magnitude alone is not enough and when to leave the coast immediately.
Read guide →