4.0

M4.0 Earthquake 11 km WNW of Rimus, PhilippinesJune 21, 2026

2026-06-21 23:03:14 UTC (6 days ago) · approx. 7:03 AM UTC+8 local

MagnitudeM4.0(mb)
Time23:03 UTC7:03 AM UTC+8
Depth55.1 kmshallow crustal
Coordinates16.910°, 120.293°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 21, 2026 at 23:03 UTC, a magnitude 4.0 shallow crustal earthquake struck 11 km WNW of Rimus, Philippines, at a depth of 55.1 km and coordinates 16.9101°, 120.2930°.

Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 16.91°, 120.29°

Earthquake Details

Magnitude
4.0 mb
Depth
55.1 km
shallow crustal
Location
16.9101°N
120.2930°E

Technical Information

Event ID
us6000t8hg
Event Type
earthquake
Status
✓ Reviewed
Significance
246
Stations Used
11
Azimuthal Gap
129.0°
Min Station Distance
19.168°
RMS Residual
0.65 sec
Last Updated
2026-06-28 22:19:35 UTC

Common Questions

How strong was the magnitude 4.0 earthquake near Rimus, Philippines?

The magnitude 4.0 earthquake that struck 11 km WNW of Rimus, Philippines on June 21, 2026 at 23:03 UTC had a depth of 55.1 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 4.0 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: us6000t8hg). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, June 21, 2026). M4.0 Earthquake 11 km WNW of Rimus, PhilippinesJune 21, 2026. Retrieved June 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000t8hg/