4.3

M4.3 Earthquake 235 km SSE of Sarangani, PhilippinesFebruary 23, 2023

2023-02-23 16:14:27 UTC (2023-02-23) · approx. 12:14 AM UTC+8 local

MagnitudeM4.3(mb)
Time16:14 UTC12:14 AM UTC+8
Depth50.6 kmshallow crustal
Coordinates3.562°, 126.528°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 23, 2023 at 16:14 UTC, a magnitude 4.3 shallow crustal earthquake struck 235 km SSE of Sarangani, Philippines, at a depth of 50.6 km and coordinates 3.5622°, 126.5283°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 3.56°, 126.53°

Earthquake Details

Magnitude
4.3 mb
Depth
50.6 km
shallow crustal
Location
3.5622°N
126.5283°E

Technical Information

Event ID
us7000jh0q
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
39
Azimuthal Gap
110.0°
Min Station Distance
2.896°
RMS Residual
0.61 sec
Last Updated
2023-04-29 21:57:30 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Sarangani, Philippines?

The magnitude 4.3 earthquake that struck 235 km SSE of Sarangani, Philippines on February 23, 2023 at 16:14 UTC had a depth of 50.6 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 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000jh0q). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, February 23, 2023). M4.3 Earthquake 235 km SSE of Sarangani, PhilippinesFebruary 23, 2023. Retrieved April 29, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jh0q/