February 25, 2023 at 12:49:00 JST
Off the southeast Coast of Chiba Prefecture · M4.0 · Shindo 1
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.
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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 | Minamiboso City南房総市白浜町白浜 | Chiba | 9.2 km |
| 1 | Tateyama City館山市長須賀 | Chiba | 15.6 km |
| 1 | Tateyama City館山市北条 | Chiba | 16.3 km |
| 1 | Kamogawa City鴨川市横渚 | Chiba | 25.2 km |
| 1 | Kamogawa City鴨川市八色 | Chiba | 25.3 km |
| 1 | Kimitsu City君津市久留里市場 | Chiba | 44.8 km |
| 1 | Otaki Town大多喜町大多喜 | Chiba | 48.9 km |
| 1 | Kisarazu City木更津市富士見 | Chiba | 53.7 km |
| 1 | Chonan Town長南町総合グラウンド | Chiba | 57.9 km |
| 1 | Ichihara City市原市姉崎 | Chiba | 63.4 km |
| 1 | Kawasaki Kawasaki-ku Miyamae-cho川崎川崎区宮前町 | Kanagawa | 74.7 km |
| 1 | Ota City東京大田区本羽田 | Tokyo | 76.2 km |
| 1 | Setagaya City東京世田谷区三軒茶屋 | Tokyo | 87.4 km |
| 1 | Shibuya City東京渋谷区宇田川町 | Tokyo | 88.6 km |
| 1 | Chiyoda City東京千代田区大手町 | Tokyo | 90.2 km |
| 1 | Shibuya City東京渋谷区本町 | Tokyo | 91.3 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: February 25, 2023 at 12:52:28Received: July 31, 2026 at 00:25:54
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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 →