M4.3 Earthquake 70 km ESE of Santiago, Philippines — September 16, 2026
2026-09-16 18:35:26 UTC (2026-09-16) · approx. 2:35 AM UTC+8 local
On September 16, 2026 at 18:35 UTC, a magnitude 4.3 shallow crustal earthquake struck 70 km ESE of Santiago, Philippines, at a depth of 12.6 km and coordinates 6.9979°, 127.1363°.
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
127.1363°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Santiago, Philippines?
The magnitude 4.3 earthquake that struck 70 km ESE of Santiago, Philippines on September 16, 2026 at 18:35 UTC had a depth of 12.6 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 4.3 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: us6000twwm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 16, 2026). M4.3 Earthquake 70 km ESE of Santiago, Philippines — September 16, 2026. Retrieved October 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000twwm/