M4.4 Earthquake 29 km ESE of Union, Philippines — November 17, 2023
2023-11-17 21:50:46 UTC (2023-11-17) · approx. 5:50 AM UTC+8 local
On November 17, 2023 at 21:50 UTC, a magnitude 4.4 shallow crustal earthquake struck 29 km ESE of Union, Philippines, at a depth of 43.5 km and coordinates 9.6619°, 126.3622°.
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
126.3622°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Union, Philippines?
The magnitude 4.4 earthquake that struck 29 km ESE of Union, Philippines on November 17, 2023 at 21:50 UTC had a depth of 43.5 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: us6000lq4c). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 17, 2023). M4.4 Earthquake 29 km ESE of Union, Philippines — November 17, 2023. Retrieved January 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lq4c/