4.2

M4.2 Earthquake 195 km SE of Sarangani, PhilippinesAugust 30, 2025

2025-08-30 21:21:20 UTC (2025-08-30) · approx. 5:21 AM UTC+8 local

MagnitudeM4.2(mb)
Time21:21 UTC5:21 AM UTC+8
Depth38.2 kmshallow crustal
Coordinates4.156°, 126.712°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 30, 2025 at 21:21 UTC, a magnitude 4.2 shallow crustal earthquake struck 195 km SE of Sarangani, Philippines, at a depth of 38.2 km and coordinates 4.1563°, 126.7115°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 4.16°, 126.71°

Earthquake Details

Magnitude
4.2 mb
Depth
38.2 km
shallow crustal
Location
4.1563°N
126.7115°E

Technical Information

Event ID
us6000rckb
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
31
Azimuthal Gap
110.0°
Min Station Distance
1.356°
RMS Residual
0.85 sec
Last Updated
2025-11-19 21:59:35 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Sarangani, Philippines?

The magnitude 4.2 earthquake that struck 195 km SE of Sarangani, Philippines on August 30, 2025 at 21:21 UTC had a depth of 38.2 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000rckb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, August 30, 2025). M4.2 Earthquake 195 km SE of Sarangani, PhilippinesAugust 30, 2025. Retrieved November 19, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000rckb/