March 21, 2026 at 20:42:00 JST
Amakusa and Ashikita Region, Kumamoto Prefecture · M3.3 · Shindo 4
熊本県天草・芦北地方
Amakusa and Ashikita Region, Kumamoto 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 |
|---|---|---|---|
| 4 | Minamata City水俣市陣内 | Kumamoto | 10.0 km |
| 3 | Tsunagi Town津奈木町小津奈木 | Kumamoto | 8.6 km |
| 3 | Minamata City水俣市牧ノ内 | Kumamoto | 8.9 km |
| 2 | Ashikita Town芦北町芦北 | Kumamoto | 8.8 km |
| 2 | Kamiamakusa City上天草市姫戸町 | Kumamoto | 16.7 km |
| 2 | Nagashima Town長島町伊唐島 | Kagoshima | 20.0 km |
| 2 | Nagashima Town長島町鷹巣 | Kagoshima | 24.1 km |
| 2 | Kuma Village球磨村渡 | Kumamoto | 24.2 km |
| 1 | Kamiamakusa City上天草市龍ヶ岳町 | Kumamoto | 10.0 km |
| 1 | Nagashima Town長島町獅子島 | Kagoshima | 17.1 km |
| 1 | 鹿児島出水市緑町 | Kagoshima | 23.8 km |
| 1 | Isa City伊佐市大口山野 | Kagoshima | 25.4 km |
| 1 | 鹿児島出水市高尾野町 | Kagoshima | 27.9 km |
| 1 | Kamiamakusa City上天草市大矢野町 | Kumamoto | 31.9 km |
| 1 | Isa City伊佐市大口鳥巣 | Kagoshima | 32.1 km |
| 1 | Amakusa City天草市牛深町 | Kumamoto | 36.9 km |
| 1 | Satsumasendai City薩摩川内市祁答院町 | Kagoshima | 48.6 km |
| 1 | Satsumasendai City薩摩川内市神田町 | Kagoshima | 55.1 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 21, 2026 at 20:46:23Received: July 31, 2026 at 00:18:27
- P2PQUAKEIssued: March 21, 2026 at 20:45:07Received: July 31, 2026 at 00:18:27
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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 →