M4.4 Earthquake 209 km WSW of Labuan, Indonesia — October 15, 2021
2021-10-15 20:34:06 UTC (2021-10-15) · approx. 3:34 AM UTC+7 local
On October 15, 2021 at 20:34 UTC, a magnitude 4.4 shallow crustal earthquake struck 209 km WSW of Labuan, Indonesia, at a depth of 36.7 km and coordinates -7.1566°, 104.0985°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
104.0985°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Labuan, Indonesia?
The magnitude 4.4 earthquake that struck 209 km WSW of Labuan, Indonesia on October 15, 2021 at 20:34 UTC had a depth of 36.7 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000fv12). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 15, 2021). M4.4 Earthquake 209 km WSW of Labuan, Indonesia — October 15, 2021. Retrieved December 25, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000fv12/