4.4

M4.4 Earthquake 88 km WSW of Basco, PhilippinesMay 2, 2026

2026-05-02 19:16:20 UTC (34 min ago) · approx. 3:16 AM UTC+8 local

MagnitudeM4.4(mb)
Time19:16 UTC3:16 AM UTC+8
Depth37.0 kmshallow crustal
Coordinates20.237°, 121.155°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 2, 2026 at 19:16 UTC, a magnitude 4.4 shallow crustal earthquake struck 88 km WSW of Basco, Philippines, at a depth of 37.0 km and coordinates 20.2370°, 121.1553°.

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 20.24°, 121.16°

Earthquake Details

Magnitude
4.4 mb
Depth
37.0 km
shallow crustal
Location
20.2370°N
121.1553°E

Technical Information

Event ID
us7000shug
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
47
Azimuthal Gap
119.0°
Min Station Distance
2.569°
RMS Residual
0.71 sec
Last Updated
2026-05-02 19:43:21 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Basco, Philippines?

The magnitude 4.4 earthquake that struck 88 km WSW of Basco, Philippines on May 2, 2026 at 19:16 UTC had a depth of 37.0 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: us7000shug). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, May 2, 2026). M4.4 Earthquake 88 km WSW of Basco, PhilippinesMay 2, 2026. Retrieved May 2, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000shug/