4.3

M4.3 Earthquake 7 km SSE of Miyako, JapanFebruary 24, 2026

2026-02-24 18:16:41 UTC (2026-02-24) · approx. 3:16 AM UTC+9 local

MagnitudeM4.3(mwr)
Time18:16 UTC3:16 AM UTC+9
Depth61.8 kmshallow crustal
Coordinates39.582°, 141.974°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 24, 2026 at 18:16 UTC, a magnitude 4.3 shallow crustal earthquake struck 7 km SSE of Miyako, Japan, at a depth of 61.8 km and coordinates 39.5816°, 141.9738°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 39.58°, 141.97°

Earthquake Details

Magnitude
4.3 mwr
Depth
61.8 km
shallow crustal
Location
39.5816°N
141.9738°E

Technical Information

Event ID
us7000s01b
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
114
Azimuthal Gap
115.0°
Min Station Distance
1.393°
RMS Residual
0.92 sec
Last Updated
2026-05-12 17:28:16 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Miyako, Japan?

The magnitude 4.3 earthquake that struck 7 km SSE of Miyako, Japan on February 24, 2026 at 18:16 UTC had a depth of 61.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000s01b). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, February 24, 2026). M4.3 Earthquake 7 km SSE of Miyako, JapanFebruary 24, 2026. Retrieved May 19, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000s01b/