M4.3 Earthquake 8 km ESE of Culaman, Philippines — August 29, 2023
2023-08-29 20:00:28 UTC (2023-08-29) · approx. 4:00 AM UTC+8 local
On August 29, 2023 at 20:00 UTC, a magnitude 4.3 intermediate depth earthquake struck 8 km ESE of Culaman, Philippines, at a depth of 185.1 km and coordinates 5.9227°, 125.7224°.
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
125.7224°E
Technical Information
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Common Questions
How strong was the magnitude 4.3 earthquake near Culaman, Philippines?
The magnitude 4.3 earthquake that struck 8 km ESE of Culaman, Philippines on August 29, 2023 at 20:00 UTC had a depth of 185.1 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: us7000kt72). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 29, 2023). M4.3 Earthquake 8 km ESE of Culaman, Philippines — August 29, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000kt72/