March 20, 2023 at 10:59:00 JST
Off the east Coast of Chiba Prefecture · M4.7 · 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.
Scroll horizontally to see the full table.
| Shindo | Station | Prefecture | Distance from epicentre |
|---|---|---|---|
| 2 | Choshi City銚子市小畑新町 | Chiba | 32.9 km |
| 2 | Choshi City銚子市川口町 | Chiba | 34.5 km |
| 2 | Choshi City銚子市若宮町 | Chiba | 36.2 km |
| 2 | Kamisu City神栖市波崎 | Ibaraki | 39.0 km |
| 2 | Asahi City旭市萩園 | Chiba | 42.3 km |
| 2 | Asahi City旭市高生 | Chiba | 45.1 km |
| 2 | Sosa City匝瑳市今泉 | Chiba | 51.2 km |
| 1 | Asahi City旭市ニ | Chiba | 47.5 km |
| 1 | Asahi City旭市南堀之内 | Chiba | 52.8 km |
| 1 | Sammu City山武市蓮沼ニ | Chiba | 55.3 km |
| 1 | Katori City香取市仁良 | Chiba | 57.7 km |
| 1 | Kamisu City神栖市溝口 | Ibaraki | 58.8 km |
| 1 | Sammu City山武市松尾町富士見台 | Chiba | 61.2 km |
| 1 | Tako Town多古町多古 | Chiba | 63.0 km |
| 1 | 茨城鹿嶋市鉢形 | Ibaraki | 66.1 km |
| 1 | Togane City東金市東新宿 | Chiba | 66.7 km |
| 1 | Ichinomiya Town一宮町一宮 | Chiba | 67.9 km |
| 1 | 茨城鹿嶋市宮中 | Ibaraki | 68.1 km |
| 1 | Katori City香取市佐原平田 | Chiba | 68.7 km |
| 1 | Togane City東金市日吉台 | Chiba | 69.4 km |
| 1 | Itako City潮来市辻 | Ibaraki | 69.9 km |
| 1 | Katori City香取市役所 | Chiba | 70.1 km |
| 1 | Katori City香取市佐原諏訪台 | Chiba | 70.1 km |
| 1 | Mutsuzawa Town睦沢町下之郷 | Chiba | 72.5 km |
| 1 | Itako City潮来市堀之内 | Ibaraki | 73.3 km |
| 1 | Chonan Town長南町総合グラウンド | Chiba | 79.6 km |
| 1 | Katsuura City勝浦市墨名 | Chiba | 81.5 km |
| 1 | Inashiki City稲敷市江戸崎甲 | Ibaraki | 86.4 km |
| 1 | Hokota City鉾田市鉾田 | Ibaraki | 90.1 km |
| 1 | Chiba Chuo Ward千葉中央区中央港 | Chiba | 90.9 km |
| 1 | Ichihara City市原市姉崎 | Chiba | 95.3 km |
| 1 | Omitama City小美玉市上玉里 | Ibaraki | 100.4 km |
| 1 | Hitachinaka Cityひたちなか市南神敷台 | Ibaraki | 104.6 km |
| 1 | Tsuchiura City土浦市常名 | Ibaraki | 106.1 km |
| 1 | Ishioka City石岡市柿岡 | Ibaraki | 115.8 km |
| 1 | Kasama City笠間市石井 | Ibaraki | 125.6 km |
| 1 | Hitachi City日立市助川小学校 | Ibaraki | 127.6 km |
| 1 | Chikusei City筑西市舟生 | Ibaraki | 134.5 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 20, 2023 at 11:03:36Received: July 31, 2026 at 00:25:52
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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 →