4.9

M4.9 Earthquake 8 km W of Kabugao, PhilippinesAugust 15, 2022

2022-08-15 08:19:37 UTC (2022-08-15) · approx. 4:19 PM UTC+8 local

MagnitudeM4.9(mb)
Time08:19 UTC4:19 PM UTC+8
Depth88.1 kmintermediate depth
Coordinates18.028°, 121.100°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 15, 2022 at 08:19 UTC, a magnitude 4.9 intermediate depth earthquake struck 8 km W of Kabugao, Philippines, at a depth of 88.1 km and coordinates 18.0282°, 121.0998°. This earthquake was detected by 138 seismic stations with good location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Philippines, a region characterized by the Manila Trench and Philippine Trench subduction systems, where the Philippine Sea Plate overrides the Eurasian Plate. The nearest mapped fault system is the Philippine Fault. View all earthquakes in Philippines.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 18.03°, 121.10°

Earthquake Details

Magnitude
4.9 mb
Depth
88.1 km
intermediate depth
Location
18.0282°N
121.0998°E

Technical Information

Event ID
us6000iayf
Event Type
earthquake
Status
✓ Reviewed
Significance
369
Stations Used
138
Azimuthal Gap
93.0°
Min Station Distance
4.765°
RMS Residual
0.32 sec
Last Updated
2022-10-28 02:26:05 UTC

Common Questions

How strong was the magnitude 4.9 earthquake near Kabugao, Philippines?

The magnitude 4.9 earthquake that struck 8 km W of Kabugao, Philippines on August 15, 2022 at 08:19 UTC had a depth of 88.1 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 18.0282°, 121.0998°, which is 8 km W of Kabugao, Philippines. View all earthquakes in Philippines.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.

Has Philippines had earthquakes this big before?

The largest recorded earthquake in Philippines was the M8.0 Mindanao earthquake of August 17, 1976. Today's magnitude 4.9 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000iayf). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, August 15, 2022). M4.9 Earthquake 8 km W of Kabugao, PhilippinesAugust 15, 2022. Retrieved October 28, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iayf/