M4.4 Earthquake 40 km NW of Tambolaka, Indonesia — July 21, 2026
2026-07-21 05:05:02 UTC (8 hours ago) · approx. 1:05 PM UTC+8 local
On July 21, 2026 at 05:05 UTC, a magnitude 4.4 intermediate depth earthquake struck 40 km NW of Tambolaka, Indonesia, at a depth of 113.7 km and coordinates -9.1600°, 118.9865°.
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
118.9865°E
Technical Information
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Common Questions
How strong was the magnitude 4.4 earthquake near Tambolaka, Indonesia?
The magnitude 4.4 earthquake that struck 40 km NW of Tambolaka, Indonesia on July 21, 2026 at 05:05 UTC had a depth of 113.7 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: us7000t24e). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, July 21, 2026). M4.4 Earthquake 40 km NW of Tambolaka, Indonesia — July 21, 2026. Retrieved July 21, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000t24e/