M4.6 Earthquake 11 km ESE of Hukay, Philippines — July 20, 2021
2021-07-20 10:07:16 UTC (2021-07-20) · approx. 6:07 PM UTC+8 local
On July 20, 2021 at 10:07 UTC, a magnitude 4.6 intermediate depth earthquake struck 11 km ESE of Hukay, Philippines, at a depth of 78.7 km and coordinates 13.8005°, 120.8029°.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — 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
120.8029°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Hukay, Philippines?
The magnitude 4.6 earthquake that struck 11 km ESE of Hukay, Philippines on July 20, 2021 at 10:07 UTC had a depth of 78.7 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 13.8005°, 120.8029°, which is 11 km ESE of Hukay, Philippines. View all earthquakes in Philippines.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 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 4.6 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us6000ezem). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, July 20, 2021). M4.6 Earthquake 11 km ESE of Hukay, Philippines — July 20, 2021. Retrieved September 25, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000ezem/