M4.4 Earthquake 233 km NW of Tobelo, Indonesia — April 23, 2023
2023-04-23 21:30:02 UTC (2023-04-23) · approx. 5:30 AM UTC+8 local
On April 23, 2023 at 21:30 UTC, a magnitude 4.4 shallow crustal earthquake struck 233 km NW of Tobelo, Indonesia, at a depth of 35.0 km and coordinates 3.4482°, 126.7884°.
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
126.7884°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.4 earthquake near Tobelo, Indonesia?
The magnitude 4.4 earthquake that struck 233 km NW of Tobelo, Indonesia on April 23, 2023 at 21:30 UTC had a depth of 35.0 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: us7000jwp7). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 23, 2023). M4.4 Earthquake 233 km NW of Tobelo, Indonesia — April 23, 2023. Retrieved July 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jwp7/