4.9

M4.9 Earthquake 167 km SE of San Jose Village, Northern Mariana IslandsAugust 22, 2026

2026-08-22 05:47:07 UTC (39 min ago) · approx. 3:47 PM UTC+10 local

MagnitudeM4.9(mb)
Time05:47 UTC3:47 PM UTC+10
Depth10.0 kmshallow crustal
Coordinates13.895°, 146.719°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 22, 2026 at 05:47 UTC, a magnitude 4.9 shallow crustal earthquake struck 167 km SE of San Jose Village, Northern Mariana Islands, at a depth of 10.0 km and coordinates 13.8954°, 146.7194°. This earthquake was detected by 53 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.

Map showing earthquake epicenter at 13.90°, 146.72°

Earthquake Details

Magnitude
4.9 mb
Depth
10.0 km
shallow crustal
Location
13.8954°N
146.7194°E

Technical Information

Event ID
us6000tmra
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
53
Azimuthal Gap
89.0°
Min Station Distance
1.605°
RMS Residual
0.78 sec
Last Updated
2026-08-22 06:09:14 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near San Jose Village, Northern Mariana Islands?

The magnitude 4.9 earthquake that struck 167 km SE of San Jose Village, Northern Mariana Islands on August 22, 2026 at 05:47 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 13.8954°, 146.7194°, which is 167 km SE of San Jose Village, Northern Mariana Islands.

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.

Authoritative source: USGS event page (event ID: us6000tmra). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 22, 2026). M4.9 Earthquake 167 km SE of San Jose Village, Northern Mariana IslandsAugust 22, 2026. Retrieved August 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmra/