M4.0 Earthquake 157 km SE of Pondaguitan, Philippines — December 11, 2021
2021-12-11 21:12:13 UTC (2021-12-11) · approx. 5:12 AM UTC+8 local
On December 11, 2021 at 21:12 UTC, a magnitude 4.0 intermediate depth earthquake struck 157 km SE of Pondaguitan, Philippines, at a depth of 78.6 km and coordinates 5.2407°, 127.0600°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
127.0600°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Pondaguitan, Philippines?
The magnitude 4.0 earthquake that struck 157 km SE of Pondaguitan, Philippines on December 11, 2021 at 21:12 UTC had a depth of 78.6 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000gci6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, December 11, 2021). M4.0 Earthquake 157 km SE of Pondaguitan, Philippines — December 11, 2021. Retrieved February 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000gci6/