4.9

M4.9 Earthquake in the Pagan region, Northern Mariana IslandsJune 9, 2026

2026-06-09 16:48:51 UTC (4 hours ago) · approx. 2:48 AM UTC+10 local

MagnitudeM4.9(mb)
Time16:48 UTC2:48 AM UTC+10
Depth51.7 kmshallow crustal
Coordinates18.554°, 146.570°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 9, 2026 at 16:48 UTC, a magnitude 4.9 shallow crustal earthquake struck in the Pagan region, Northern Mariana Islands, at a depth of 51.7 km and coordinates 18.5538°, 146.5700°. This earthquake was detected by 89 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 18.55°, 146.57°

Earthquake Details

Magnitude
4.9 mb
Depth
51.7 km
shallow crustal
Location
18.5538°N
146.5700°E

Technical Information

Event ID
us7000srub
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
89
Azimuthal Gap
58.0°
Min Station Distance
3.384°
RMS Residual
0.51 sec
Last Updated
2026-06-09 17:45:31 UTC

Common Questions

How strong was the magnitude 4.9 earthquake in the Pagan region, Northern Mariana Islands?

The magnitude 4.9 earthquake that struck in the Pagan region, Northern Mariana Islands on June 9, 2026 at 16:48 UTC had a depth of 51.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 18.5538°, 146.5700°, which is in the Pagan region, 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.

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: us7000srub). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 9, 2026). M4.9 Earthquake in the Pagan region, Northern Mariana IslandsJune 9, 2026. Retrieved June 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000srub/