M4.2 Earthquake 31 km NNE of Komodo, Indonesia — August 31, 2026
2026-08-31 14:25:51 UTC (2026-08-31) · approx. 10:25 PM UTC+8 local
On August 31, 2026 at 14:25 UTC, a magnitude 4.2 intermediate depth earthquake struck 31 km NNE of Komodo, Indonesia, at a depth of 187.8 km and coordinates -8.3284°, 119.6140°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 5.5 mainshock that occurred 26 days ago 28 km NE of Labuan Bajo, Indonesia. Since the mainshock, the USGS has recorded 19 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
119.6140°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Komodo, Indonesia?
The magnitude 4.2 earthquake that struck 31 km NNE of Komodo, Indonesia on August 31, 2026 at 14:25 UTC had a depth of 187.8 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 4.2 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.5 one earlier?
No. This magnitude 4.2 earthquake is an aftershock of the larger magnitude 5.5 mainshock that occurred earlier 28 km NE of Labuan Bajo, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000td4c). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 31, 2026). M4.2 Earthquake 31 km NNE of Komodo, Indonesia — August 31, 2026. Retrieved September 8, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000td4c/