M4.2 Earthquake 182 km NNW of Tobelo, Indonesia — August 22, 2023
2023-08-22 21:55:35 UTC (2023-08-22) · approx. 5:55 AM UTC+8 local
On August 22, 2023 at 21:55 UTC, a magnitude 4.2 shallow crustal earthquake struck 182 km NNW of Tobelo, Indonesia, at a depth of 53.6 km and coordinates 3.1315°, 127.1509°.
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.
Earthquake Details
127.1509°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.2 earthquake near Tobelo, Indonesia?
The magnitude 4.2 earthquake that struck 182 km NNW of Tobelo, Indonesia on August 22, 2023 at 21:55 UTC had a depth of 53.6 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.
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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: us7000krwt). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 22, 2023). M4.2 Earthquake 182 km NNW of Tobelo, Indonesia — August 22, 2023. Retrieved October 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000krwt/