M4.7 Earthquake 13 km SSW of Balangiga, Philippines — October 17, 2022
2022-10-17 01:57:45 UTC (2022-10-17) · approx. 9:57 AM UTC+8 local
On October 17, 2022 at 01:57 UTC, a magnitude 4.7 intermediate depth earthquake struck 13 km SSW of Balangiga, Philippines, at a depth of 92.0 km and coordinates 10.9992°, 125.3315°. This earthquake was detected by 72 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 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
Earthquake Details
125.3315°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Balangiga, Philippines?
The magnitude 4.7 earthquake that struck 13 km SSW of Balangiga, Philippines on October 17, 2022 at 01:57 UTC had a depth of 92.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 10.9992°, 125.3315°, which is 13 km SSW of Balangiga, Philippines. View all earthquakes in Philippines.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 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 4.7 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us6000iu7t). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 17, 2022). M4.7 Earthquake 13 km SSW of Balangiga, Philippines — October 17, 2022. Retrieved December 31, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iu7t/