4.4

M4.4 Earthquake 41 km ENE of Hachinohe, JapanJune 28, 2026

2026-06-28 23:11:24 UTC (2026-06-28) · approx. 8:11 AM UTC+9 local

MagnitudeM4.4(mb)
Time23:11 UTC8:11 AM UTC+9
Depth67.0 kmshallow crustal
Coordinates40.682°, 141.931°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 28, 2026 at 23:11 UTC, a magnitude 4.4 shallow crustal earthquake struck 41 km ENE of Hachinohe, Japan, at a depth of 67.0 km and coordinates 40.6825°, 141.9308°.

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 40.68°, 141.93°

Earthquake Details

Magnitude
4.4 mb
Depth
67.0 km
shallow crustal
Location
40.6825°N
141.9308°E

Technical Information

Event ID
us6000t8vx
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
33
Azimuthal Gap
149.0°
Min Station Distance
0.667°
RMS Residual
0.49 sec
Last Updated
2026-07-06 21:27:30 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Hachinohe, Japan?

The magnitude 4.4 earthquake that struck 41 km ENE of Hachinohe, Japan on June 28, 2026 at 23:11 UTC had a depth of 67.0 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: us6000t8vx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 28, 2026). M4.4 Earthquake 41 km ENE of Hachinohe, JapanJune 28, 2026. Retrieved July 6, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t8vx/