4.4

M4.4 Earthquake 48 km E of Saipan, Northern Mariana IslandsJune 22, 2026

2026-06-22 09:57:29 UTC (5 hours ago) · approx. 7:57 PM UTC+10 local

MagnitudeM4.4(mb)
Time09:57 UTC7:57 PM UTC+10
Depth101.1 kmintermediate depth
Coordinates15.270°, 146.204°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 22, 2026 at 09:57 UTC, a magnitude 4.4 intermediate depth earthquake struck 48 km E of Saipan, Northern Mariana Islands, at a depth of 101.1 km and coordinates 15.2696°, 146.2037°.

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 15.27°, 146.20°

Earthquake Details

Magnitude
4.4 mb
Depth
101.1 km
intermediate depth
Location
15.2696°N
146.2037°E

Technical Information

Event ID
us7000sv73
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
61
Azimuthal Gap
87.0°
Min Station Distance
0.399°
RMS Residual
0.83 sec
Last Updated
2026-06-22 12:46:01 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Saipan, Northern Mariana Islands?

The magnitude 4.4 earthquake that struck 48 km E of Saipan, Northern Mariana Islands on June 22, 2026 at 09:57 UTC had a depth of 101.1 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.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000sv73). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 22, 2026). M4.4 Earthquake 48 km E of Saipan, Northern Mariana IslandsJune 22, 2026. Retrieved June 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sv73/