Observed earthquake
102 km ENE of Miyako, Japan
Recent observationReported by 1 agency. Every solution below is that agency's own measurement, stored unaltered.
Magnitude
7.4mww
Depth
25 km
shallow
Origin time
2026-04-20 07:52:58 UTC
6 mo ago
Epicentre
39.97°N, 143.06°E
A reporting agency set the tsunami evaluation flag for this earthquake. That flag means the event met criteria for tsunami assessment — it is not itself a tsunami warning. Official tsunami warnings come only from your national tsunami warning centre.
Agency solutions
The same earthquake as measured independently by each agency. Values are never averaged or rewritten.
| Agency | Magnitude | Depth | Origin time | Epicentre | Review status | Source record |
|---|---|---|---|---|---|---|
| USGSUnited States Geological Survey | M7.4 mww | 25 km | 2026-04-20 07:52:58 UTC | 39.97°N, 143.06°E | Reviewed by an analyst239 stations | us6000sri7 ↗ |
Source: Earthquake data courtesy of the U.S. Geological Survey. · Retrieved: 2026-09-21 15:53:25 UTC
Felt reports
136 people submitted a felt report to United States Geological Survey · community intensity estimate 6.6 · instrumental intensity estimate 5.989.
Felt reports are crowd-sourced and reflect where people had internet access and chose to respond. They are not a complete map of who felt the earthquake.