M4.0 Earthquake 220 km SE of Pondaguitan, Philippines — January 21, 2021
2021-01-21 22:13:40 UTC (2021-01-21) · approx. 7:13 AM UTC+9 local
On January 21, 2021 at 22:13 UTC, a magnitude 4.0 intermediate depth earthquake struck 220 km SE of Pondaguitan, Philippines, at a depth of 121.9 km and coordinates 4.9209°, 127.5485°.
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
127.5485°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 220 km SE of Pondaguitan, Philippines on January 21, 2021 at 22:13 UTC had a depth of 121.9 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 4.0 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: us6000dcvu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, January 21, 2021). M4.0 Earthquake 220 km SE of Pondaguitan, Philippines — January 21, 2021. Retrieved March 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dcvu/