M4.3 Earthquake 278 km SW of Tambolaka, Indonesia — July 26, 2023
2023-07-26 17:39:47 UTC (2023-07-26) · approx. 1:39 AM UTC+8 local
On July 26, 2023 at 17:39 UTC, a magnitude 4.3 shallow crustal earthquake struck 278 km SW of Tambolaka, Indonesia, at a depth of 10.0 km and coordinates -11.4910°, 117.7812°.
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
117.7812°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Tambolaka, Indonesia?
The magnitude 4.3 earthquake that struck 278 km SW of Tambolaka, Indonesia on July 26, 2023 at 17:39 UTC had a depth of 10.0 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: us6000kxk9). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, July 26, 2023). M4.3 Earthquake 278 km SW of Tambolaka, Indonesia — July 26, 2023. Retrieved September 30, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kxk9/