March 21, 2021 at 00:37:00 JST
Off the Coast of Miyagi Prefecture · M3.9 · Shindo 1
宮城県沖
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.
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| Shindo | Station | Prefecture | Distance from epicentre |
|---|---|---|---|
| 1 | Ishinomaki City石巻市泉町 | Miyagi | 29.8 km |
| 1 | Ishinomaki City石巻市大街道南 | Miyagi | 31.5 km |
| 1 | Ishinomaki City石巻市北上町 | Miyagi | 33.4 km |
| 1 | Higashimatsushima City東松島市矢本 | Miyagi | 37.0 km |
| 1 | Higashimatsushima City東松島市小野 | Miyagi | 40.0 km |
| 1 | Ishinomaki City石巻市桃生町 | Miyagi | 42.7 km |
| 1 | Tome City登米市津山町 | Miyagi | 43.2 km |
| 1 | Tome City登米市豊里町 | Miyagi | 44.4 km |
| 1 | Minamisanriku Town南三陸町歌津 | Miyagi | 47.1 km |
| 1 | Matsushima Town松島町高城 | Miyagi | 47.4 km |
| 1 | Wakuya Town涌谷町新町裏 | Miyagi | 49.2 km |
| 1 | Shiogama City塩竈市今宮町 | Miyagi | 51.7 km |
| 1 | Tome City登米市東和町 | Miyagi | 54.0 km |
| 1 | Rifu Town利府町利府 | Miyagi | 54.3 km |
| 1 | Tome City登米市南方町 | Miyagi | 55.4 km |
| 1 | Tome City登米市中田町 | Miyagi | 55.5 km |
| 1 | 大崎市田尻 | Miyagi | 57.7 km |
| 1 | Sendai Miyagino Ward仙台宮城野区苦竹 | Miyagi | 58.7 km |
| 1 | Tome City登米市石越町 | Miyagi | 62.8 km |
| 1 | Natori City名取市増田 | Miyagi | 63.8 km |
| 1 | Kesennuma City気仙沼市赤岩 | Miyagi | 64.4 km |
| 1 | 栗原市高清水 | Miyagi | 65.2 km |
| 1 | Ohira Village大衡村大衡 | Miyagi | 65.7 km |
| 1 | Ichinoseki City一関市藤沢町 | Iwate | 65.9 km |
| 1 | Kesennuma City気仙沼市笹が陣 | Miyagi | 66.7 km |
| 1 | Kesennuma City気仙沼市唐桑町 | Miyagi | 66.7 km |
| 1 | Iwanuma City岩沼市桜 | Miyagi | 67.7 km |
| 1 | Ichinoseki City一関市花泉町 | Iwate | 69.3 km |
| 1 | Ichinoseki City一関市室根町 | Iwate | 72.4 km |
| 1 | Ichinoseki City一関市千厩町 | Iwate | 72.7 km |
| 1 | 栗原市栗駒 | Miyagi | 78.9 km |
| 1 | Ichinoseki City一関市大東町 | Iwate | 81.5 km |
| 1 | Sendai Aoba Ward仙台青葉区大倉 | Miyagi | 82.5 km |
| 1 | Ichinoseki City一関市東山町 | Iwate | 83.5 km |
| 1 | 宮城川崎町前川 | Miyagi | 85.1 km |
| 1 | Ofunato City大船渡市大船渡町 | Iwate | 85.5 km |
| 1 | Sumita Town住田町世田米 | Iwate | 93.3 km |
| 1 | 南三陸町志津川 | Miyagi | — |
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: March 21, 2021 at 00:40:07Received: July 31, 2026 at 00:29:19
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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 →