4.4

M4.4 Earthquake in the Volcano Islands, Japan regionJune 5, 2025

2025-06-05 19:51:55 UTC (2025-06-05) · approx. 5:51 AM UTC+10 local

MagnitudeM4.4(mb)
Time19:51 UTC5:51 AM UTC+10
Depth35.0 kmshallow crustal
Coordinates22.155°, 144.448°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 5, 2025 at 19:51 UTC, a magnitude 4.4 shallow crustal earthquake struck in the Volcano Islands, Japan region, at a depth of 35.0 km and coordinates 22.1550°, 144.4477°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 22.16°, 144.45°

Earthquake Details

Magnitude
4.4 mb
Depth
35.0 km
shallow crustal
Location
22.1550°N
144.4477°E

Technical Information

Event ID
us6000qi9k
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
46
Azimuthal Gap
138.0°
Min Station Distance
5.332°
RMS Residual
0.70 sec
Last Updated
2025-08-20 16:08:56 UTC

Common Questions

How strong was the magnitude 4.4 earthquake in the Volcano Islands, Japan region?

The magnitude 4.4 earthquake that struck in the Volcano Islands, Japan region on June 5, 2025 at 19:51 UTC had a depth of 35.0 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 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000qi9k). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, June 5, 2025). M4.4 Earthquake in the Volcano Islands, Japan regionJune 5, 2025. Retrieved August 20, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000qi9k/