August 22, 2021 at 06:14:00 JST
Adjacent Sado · M4.0 · Shindo 2
佐渡付近
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 |
|---|---|---|---|
| 2 | Sado City佐渡市相川三町目 | Niigata | 4.8 km |
| 2 | Sado City佐渡市河原田本町 | Niigata | 10.5 km |
| 2 | Sado City佐渡市真野新町 | Niigata | 13.6 km |
| 2 | Sado City佐渡市羽茂本郷 | Niigata | 19.7 km |
| 2 | Sado City佐渡市小木町 | Niigata | 21.2 km |
| 1 | Sado City佐渡市相川栄町 | Niigata | 5.7 km |
| 1 | Sado City佐渡市千種 | Niigata | 15.1 km |
| 1 | Sado City佐渡市畑野 | Niigata | 17.6 km |
| 1 | Sado City佐渡市新穂瓜生屋 | Niigata | 20.3 km |
| 1 | Sado City佐渡市両津湊 | Niigata | 22.5 km |
| 1 | Sado City佐渡市赤泊 | Niigata | 23.4 km |
| 1 | Sado City佐渡市松ヶ崎 | Niigata | 27.8 km |
| 1 | Izumozaki Town出雲崎町米田 | Niigata | 68.2 km |
| 1 | Izumozaki Town出雲崎町川西 | Niigata | 69.1 km |
| 1 | Nagaoka City長岡市中之島 | Niigata | 78.0 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: August 22, 2021 at 06:17:52Received: July 31, 2026 at 00:28:36
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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 →