4.3

M4.3 Earthquake 10 km ESE of Aras-asan, PhilippinesApril 18, 2022

2022-04-18 18:19:27 UTC (2022-04-18) · approx. 2:19 AM UTC+8 local

MagnitudeM4.3(mb)
Time18:19 UTC2:19 AM UTC+8
Depth51.9 kmshallow crustal
Coordinates8.849°, 126.403°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 18, 2022 at 18:19 UTC, a magnitude 4.3 shallow crustal earthquake struck 10 km ESE of Aras-asan, Philippines, at a depth of 51.9 km and coordinates 8.8487°, 126.4031°.

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 8.85°, 126.40°

Earthquake Details

Magnitude
4.3 mb
Depth
51.9 km
shallow crustal
Location
8.8487°N
126.4031°E

Technical Information

Event ID
us6000hfnm
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Azimuthal Gap
140.0°
Min Station Distance
1.946°
RMS Residual
1.11 sec
Last Updated
2022-06-26 01:19:16 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Aras-asan, Philippines?

The magnitude 4.3 earthquake that struck 10 km ESE of Aras-asan, Philippines on April 18, 2022 at 18:19 UTC had a depth of 51.9 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.

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: us6000hfnm). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, April 18, 2022). M4.3 Earthquake 10 km ESE of Aras-asan, PhilippinesApril 18, 2022. Retrieved June 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hfnm/