November 23, 2021 at 08:52:00 JST
Off the southeast Coast of Chiba Prefecture · M3.7 · Shindo 2
千葉県南東沖
Off the southeast Coast of Chiba Prefecture earthquake history →
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.
View local history
View local history
View local history
View local history
View local history
View local history
View local history
View local history
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 | Kamogawa City鴨川市横渚 | Chiba | 15.0 km |
| 2 | Kamogawa City鴨川市八色 | Chiba | 15.6 km |
| 1 | Katsuura City勝浦市墨名 | Chiba | 19.5 km |
| 1 | Katsuura City勝浦市新官 | Chiba | 19.9 km |
| 1 | Minamiboso City南房総市岩糸 | Chiba | 22.0 km |
| 1 | Minamiboso City南房総市谷向 | Chiba | 27.6 km |
| 1 | Minamiboso City南房総市上堀 | Chiba | 28.9 km |
| 1 | Tateyama City館山市北条 | Chiba | 30.1 km |
| 1 | Tateyama City館山市長須賀 | Chiba | 30.6 km |
| 1 | Otaki Town大多喜町大多喜 | Chiba | 32.5 km |
| 1 | Isumi Cityいすみ市国府台 | Chiba | 32.6 km |
| 1 | Kimitsu City君津市久留里市場 | Chiba | 35.3 km |
| 1 | Mutsuzawa Town睦沢町下之郷 | Chiba | 41.4 km |
| 1 | Chonan Town長南町総合グラウンド | Chiba | 42.8 km |
| 1 | Chonan Town長南町長南 | Chiba | 43.4 km |
| 1 | Ichinomiya Town一宮町一宮 | Chiba | 44.0 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: November 23, 2021 at 08:54:39Received: July 31, 2026 at 00:28:15
Follow the next earthquake from the places that matter
Save important places, compare locally observed Shindo and receive notifications after station readings are confirmed.
- ✓Saved places
- ✓Local Shindo
- ✓Observed alerts
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 →