M4.3 Earthquake 41 km NE of Cortes, Philippines — March 28, 2025
2025-03-28 20:44:09 UTC (2025-03-28) · approx. 4:44 AM UTC+8 local
On March 28, 2025 at 20:44 UTC, a magnitude 4.3 shallow crustal earthquake struck 41 km NE of Cortes, Philippines, at a depth of 35.0 km and coordinates 9.5575°, 126.4481°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
126.4481°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Cortes, Philippines?
The magnitude 4.3 earthquake that struck 41 km NE of Cortes, Philippines on March 28, 2025 at 20:44 UTC had a depth of 35.0 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 4.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000q4k8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 28, 2025). M4.3 Earthquake 41 km NE of Cortes, Philippines — March 28, 2025. Retrieved June 6, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000q4k8/