4.3

M4.3 Earthquake 58 km N of Claveria, PhilippinesDecember 24, 2021

2021-12-24 18:42:10 UTC (2021-12-24) · approx. 2:42 AM UTC+8 local

MagnitudeM4.3(mb)
Time18:42 UTC2:42 AM UTC+8
Depth20.4 kmshallow crustal
Coordinates19.134°, 121.019°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 24, 2021 at 18:42 UTC, a magnitude 4.3 shallow crustal earthquake struck 58 km N of Claveria, Philippines, at a depth of 20.4 km and coordinates 19.1342°, 121.0186°.

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 19.13°, 121.02°

Earthquake Details

Magnitude
4.3 mb
Depth
20.4 km
shallow crustal
Location
19.1342°N
121.0186°E

Technical Information

Event ID
us7000g9k5
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Azimuthal Gap
114.0°
Min Station Distance
3.665°
RMS Residual
1.14 sec
Last Updated
2022-03-05 23:11:01 UTC

Common Questions

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

The magnitude 4.3 earthquake that struck 58 km N of Claveria, Philippines on December 24, 2021 at 18:42 UTC had a depth of 20.4 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: us7000g9k5). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, December 24, 2021). M4.3 Earthquake 58 km N of Claveria, PhilippinesDecember 24, 2021. Retrieved March 5, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000g9k5/