M3.9 Earthquake 132 km S of Baubau, Indonesia — August 16, 2026
2026-08-16 22:22:35 UTC (2026-08-16) · approx. 6:22 AM UTC+8 local
On August 16, 2026 at 22:22 UTC, a magnitude 3.9 shallow crustal earthquake struck 132 km S of Baubau, Indonesia, at a depth of 10.0 km and coordinates -6.6586°, 122.4951°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 11 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 296 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
122.4951°E
Technical Information
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Common Questions
How strong was the magnitude 3.9 earthquake near Baubau, Indonesia?
The magnitude 3.9 earthquake that struck 132 km S of Baubau, Indonesia on August 16, 2026 at 22:22 UTC had a depth of 10.0 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.9 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us6000tmi2). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 16, 2026). M3.9 Earthquake 132 km S of Baubau, Indonesia — August 16, 2026. Retrieved September 9, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmi2/