M4.3 Earthquake 123 km E of Luwuk, Indonesia — February 25, 2021
2021-02-25 17:50:47 UTC (2021-02-25) · approx. 1:50 AM UTC+8 local
On February 25, 2021 at 17:50 UTC, a magnitude 4.3 intermediate depth earthquake struck 123 km E of Luwuk, Indonesia, at a depth of 86.4 km and coordinates -0.9225°, 123.9001°.
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
123.9001°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Luwuk, Indonesia?
The magnitude 4.3 earthquake that struck 123 km E of Luwuk, Indonesia on February 25, 2021 at 17:50 UTC had a depth of 86.4 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: us7000dews). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, February 25, 2021). M4.3 Earthquake 123 km E of Luwuk, Indonesia — February 25, 2021. Retrieved May 4, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000dews/