M4.4 Earthquake 15 km ESE of Calbiga, Philippines — August 4, 2020
2020-08-04 17:11:04 UTC (2020-08-04) · approx. 1:11 AM UTC+8 local
On August 4, 2020 at 17:11 UTC, a magnitude 4.4 shallow crustal earthquake struck 15 km ESE of Calbiga, Philippines, at a depth of 69.3 km and coordinates 11.5625°, 125.1439°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
125.1439°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake near Calbiga, Philippines?
The magnitude 4.4 earthquake that struck 15 km ESE of Calbiga, Philippines on August 4, 2020 at 17:11 UTC had a depth of 69.3 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000bbyg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, August 4, 2020). M4.4 Earthquake 15 km ESE of Calbiga, Philippines — August 4, 2020. Retrieved October 10, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000bbyg/