4.3

M4.3 Earthquake 88 km SE of Sarangani, PhilippinesMay 22, 2022

2022-05-22 23:45:33 UTC (2022-05-22) · approx. 7:45 AM UTC+8 local

MagnitudeM4.3(mb)
Time23:45 UTC7:45 AM UTC+8
Depth36.9 kmshallow crustal
Coordinates4.743°, 125.918°
Felt byNo felt reports
Status✓ Reviewed by USGS

On May 22, 2022 at 23:45 UTC, a magnitude 4.3 shallow crustal earthquake struck 88 km SE of Sarangani, Philippines, at a depth of 36.9 km and coordinates 4.7432°, 125.9182°.

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.

This earthquake is part of an ongoing aftershock sequence following the magnitude 5.2 mainshock that occurred 10 days ago 44 km SE of Sarangani, Philippines. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at 4.74°, 125.92°

Earthquake Details

Magnitude
4.3 mb
Depth
36.9 km
shallow crustal
Location
4.7432°N
125.9182°E

Technical Information

Event ID
us7000hd1s
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
22
Azimuthal Gap
115.0°
Min Station Distance
2.335°
RMS Residual
0.59 sec
Last Updated
2022-08-02 19:50:58 UTC

Common Questions

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

The magnitude 4.3 earthquake that struck 88 km SE of Sarangani, Philippines on May 22, 2022 at 23:45 UTC had a depth of 36.9 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.

Is this the same earthquake as the M5.2 one earlier?

No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 5.2 mainshock that occurred earlier 44 km SE of Sarangani, Philippines. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

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: us7000hd1s). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, May 22, 2022). M4.3 Earthquake 88 km SE of Sarangani, PhilippinesMay 22, 2022. Retrieved August 2, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hd1s/