September 24, 2021 at 18:48:00 JST
Off the Coast of Joetsu and Chuetsu, Niigata Prefecture · M3.7 · Shindo 3
新潟県上中越沖
Off the Coast of Joetsu and Chuetsu, Niigata 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.
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 |
|---|---|---|---|
| 3 | 上越市柿崎区柿崎 | Niigata | 13.3 km |
| 2 | 上越市大潟区土底浜 | Niigata | 19.9 km |
| 2 | 上越市吉川区原之町 | Niigata | 20.0 km |
| 2 | 上越市浦川原区釜淵 | Niigata | 26.8 km |
| 2 | 上越市大島区岡 | Niigata | 29.4 km |
| 1 | Kashiwazaki City柏崎市日石町 | Niigata | 14.6 km |
| 1 | Kariwa Village刈羽村割町新田 | Niigata | 19.6 km |
| 1 | 上越市頸城区百間町 | Niigata | 24.1 km |
| 1 | Kashiwazaki City柏崎市西山町池浦 | Niigata | 24.8 km |
| 1 | Nagaoka City長岡市小国町法坂 | Niigata | 29.2 km |
| 1 | 上越市安塚区安塚 | Niigata | 30.3 km |
| 1 | 上越市木田 | Niigata | 31.2 km |
| 1 | 上越市三和区井ノ口 | Niigata | 31.4 km |
| 1 | 上越市大手町 | Niigata | 35.3 km |
| 1 | 上越市牧区柳島 | Niigata | 35.6 km |
| 1 | 上越市清里区荒牧 | Niigata | 36.1 km |
| 1 | 上越市中ノ俣 | Niigata | 38.9 km |
| 1 | 糸魚川市大野 | Niigata | 63.8 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: September 24, 2021 at 18:51:53Received: July 31, 2026 at 00:28:29
- P2PQUAKEIssued: September 24, 2021 at 18:50:57Received: July 31, 2026 at 00:28:29
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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 →