4.6

M4.6 Earthquake 76 km SSW of San Jose Village, Northern Mariana IslandsAugust 22, 2026

2026-08-22 07:43:51 UTC (44 min ago) · approx. 5:43 PM UTC+10 local

MagnitudeM4.6(mb)
Time07:43 UTC5:43 PM UTC+10
Depth115.9 kmintermediate depth
Coordinates14.337°, 145.329°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 22, 2026 at 07:43 UTC, a magnitude 4.6 intermediate depth earthquake struck 76 km SSW of San Jose Village, Northern Mariana Islands, at a depth of 115.9 km and coordinates 14.3370°, 145.3295°. This earthquake was detected by 67 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 14.34°, 145.33°

Earthquake Details

Magnitude
4.6 mb
Depth
115.9 km
intermediate depth
Location
14.3370°N
145.3295°E

Technical Information

Event ID
us6000tmrq
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
67
Azimuthal Gap
83.0°
Min Station Distance
0.997°
RMS Residual
0.67 sec
Last Updated
2026-08-22 08:11:31 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near San Jose Village, Northern Mariana Islands?

The magnitude 4.6 earthquake that struck 76 km SSW of San Jose Village, Northern Mariana Islands on August 22, 2026 at 07:43 UTC had a depth of 115.9 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 14.3370°, 145.3295°, which is 76 km SSW of San Jose Village, Northern Mariana Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000tmrq). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 22, 2026). M4.6 Earthquake 76 km SSW of San Jose Village, Northern Mariana IslandsAugust 22, 2026. Retrieved August 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmrq/