March 3, 2021 at 20:29:00 JST
Off the east Coast of Chiba Prefecture · M3.7 · Shindo 2
千葉県東方沖
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 |
|---|---|---|---|
| 2 | Choshi City銚子市若宮町 | Chiba | 9.2 km |
| 2 | Kamisu City神栖市波崎 | Ibaraki | 9.3 km |
| 2 | Choshi City銚子市小畑新町 | Chiba | 9.5 km |
| 2 | Asahi City旭市高生 | Chiba | 20.5 km |
| 1 | Choshi City銚子市川口町 | Chiba | 7.6 km |
| 1 | Asahi City旭市萩園 | Chiba | 19.9 km |
| 1 | Asahi City旭市ニ | Chiba | 24.3 km |
| 1 | Asahi City旭市南堀之内 | Chiba | 25.5 km |
| 1 | Katori City香取市仁良 | Chiba | 28.9 km |
| 1 | Sammu City山武市蓮沼ハ | Chiba | 42.5 km |
| 1 | Sammu City山武市蓮沼ニ | Chiba | 43.1 km |
| 1 | Hokota City鉾田市汲上 | Ibaraki | 44.7 km |
| 1 | Inashiki City稲敷市須賀津 | Ibaraki | 48.1 km |
| 1 | Togane City東金市東新宿 | Chiba | 55.0 km |
| 1 | Togane City東金市日吉台 | Chiba | 56.8 km |
| 1 | Tsuchiura City土浦市常名 | Ibaraki | 72.4 km |
| 1 | Chonan Town長南町総合グラウンド | Chiba | 75.8 km |
| 1 | Ishioka City石岡市柿岡 | Ibaraki | 80.2 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: March 3, 2021 at 20:31:53Received: July 31, 2026 at 00:29:25
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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 →