4.3

M4.3 Earthquake 184 km S of Tateyama, JapanJuly 24, 2026

2026-07-24 23:18:21 UTC (2026-07-24) · approx. 8:18 AM UTC+9 local

MagnitudeM4.3(mb)
Time23:18 UTC8:18 AM UTC+9
Depth80.4 kmintermediate depth
Coordinates33.350°, 140.250°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 24, 2026 at 23:18 UTC, a magnitude 4.3 intermediate depth earthquake struck 184 km S of Tateyama, Japan, at a depth of 80.4 km and coordinates 33.3505°, 140.2501°.

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 33.35°, 140.25°

Earthquake Details

Magnitude
4.3 mb
Depth
80.4 km
intermediate depth
Location
33.3505°N
140.2501°E

Technical Information

Event ID
us7000t389
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
35
Azimuthal Gap
124.0°
Min Station Distance
3.282°
RMS Residual
0.95 sec
Last Updated
2026-08-11 00:51:43 UTC

Common Questions

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

The magnitude 4.3 earthquake that struck 184 km S of Tateyama, Japan on July 24, 2026 at 23:18 UTC had a depth of 80.4 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: us7000t389). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, July 24, 2026). M4.3 Earthquake 184 km S of Tateyama, JapanJuly 24, 2026. Retrieved August 11, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t389/