4.9

M4.9 Earthquake in the Volcano Islands, Japan regionSeptember 2, 2026

2026-09-02 13:53:02 UTC (3 hours ago) · approx. 11:53 PM UTC+10 local

MagnitudeM4.9(mb)
Time13:53 UTC11:53 PM UTC+10
Depth38.4 kmshallow crustal
Coordinates22.862°, 144.060°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 2, 2026 at 13:53 UTC, a magnitude 4.9 shallow crustal earthquake struck in the Volcano Islands, Japan region, at a depth of 38.4 km and coordinates 22.8619°, 144.0600°. This earthquake was detected by 120 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Japan, a region characterized by the intersection of four tectonic plates — Pacific, Philippine Sea, Eurasian, and North American — creating multiple subduction zones. The nearest mapped fault system is the Japan Trench. View all earthquakes in Japan.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 22.86°, 144.06°

Earthquake Details

Magnitude
4.9 mb
Depth
38.4 km
shallow crustal
Location
22.8619°N
144.0600°E

Technical Information

Event ID
us7000tdn6
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
120
Azimuthal Gap
63.0°
Min Station Distance
13.871°
RMS Residual
0.63 sec
Last Updated
2026-09-02 15:56:43 UTC

Common Questions

How strong was the magnitude 4.9 earthquake in the Volcano Islands, Japan region?

The magnitude 4.9 earthquake that struck in the Volcano Islands, Japan region on September 2, 2026 at 13:53 UTC had a depth of 38.4 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 22.8619°, 144.0600°, which is in the Volcano Islands, Japan region. View all earthquakes in Japan.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Has Japan had earthquakes this big before?

The largest recorded earthquake in Japan was the M9.1 Tohoku earthquake of March 11, 2011. Today's magnitude 4.9 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000tdn6). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 2, 2026). M4.9 Earthquake in the Volcano Islands, Japan regionSeptember 2, 2026. Retrieved September 2, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000tdn6/