4.3

M4.3 Earthquake 13 km NNW of China, JapanAugust 2, 2026

2026-08-02 10:10:36 UTC (5 days ago) · approx. 7:10 PM UTC+9 local

MagnitudeM4.3(mb)
Time10:10 UTC7:10 PM UTC+9
Depth62.0 kmshallow crustal
Coordinates27.448°, 128.532°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 2, 2026 at 10:10 UTC, a magnitude 4.3 shallow crustal earthquake struck 13 km NNW of China, Japan, at a depth of 62.0 km and coordinates 27.4479°, 128.5322°.

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 27.45°, 128.53°

Earthquake Details

Magnitude
4.3 mb
Depth
62.0 km
shallow crustal
Location
27.4479°N
128.5322°E

Technical Information

Event ID
us6000tin4
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
47
Azimuthal Gap
52.0°
Min Station Distance
0.652°
RMS Residual
1.27 sec
Last Updated
2026-08-07 11:47:09 UTC

Common Questions

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

The magnitude 4.3 earthquake that struck 13 km NNW of China, Japan on August 2, 2026 at 10:10 UTC had a depth of 62.0 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.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000tin4). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 2, 2026). M4.3 Earthquake 13 km NNW of China, JapanAugust 2, 2026. Retrieved August 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tin4/