April 16, 2021 at 08:33:00 JST
Northern Coast of Akita Prefecture · M4.2 · Shindo 3
秋田県沿岸北部
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 | Oga City男鹿市船川 | Akita | 4.4 km |
| 2 | Oga City男鹿市男鹿中 | Akita | 2.3 km |
| 1 | Oga City男鹿市角間崎 | Akita | 12.2 km |
| 1 | Katagami City潟上市天王 | Akita | 18.5 km |
| 1 | Katagami City潟上市昭和大久保 | Akita | 23.3 km |
| 1 | Ikawa Town井川町北川尻 | Akita | 24.0 km |
| 1 | Mitane Town三種町森岳 | Akita | 32.6 km |
| 1 | Akita City秋田市八橋運動公園 | Akita | 32.9 km |
| 1 | Noshiro City能代市緑町 | Akita | 38.6 km |
| 1 | Noshiro City能代市追分町 | Akita | 38.9 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: April 16, 2021 at 08:37:02Received: July 31, 2026 at 00:29:06
- P2PQUAKEIssued: April 16, 2021 at 08:36:12Received: July 31, 2026 at 00:29:06
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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 →