M4.9 Earthquake 95 km W of Tobelo, Indonesia — October 10, 2024
2024-10-10 07:22:46 UTC (2024-10-10) · approx. 3:22 PM UTC+8 local
Aftershock of the M5.3 mainshock.
On October 10, 2024 at 07:22 UTC, a magnitude 4.9 intermediate depth earthquake struck 95 km W of Tobelo, Indonesia, at a depth of 107.5 km and coordinates 1.8848°, 127.1630°. This earthquake was detected by 87 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 369, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — 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 5.3 mainshock that occurred 2 days ago 62 km W of Tobelo, Indonesia. Since the mainshock, the USGS has recorded 1 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
The epicenter is located in Indonesia, a region characterized by the convergence of the Indo-Australian, Eurasian, and Philippine Sea plates, forming the Sunda-Banda arc system. The nearest mapped fault system is the Sunda megathrust. View all earthquakes in Indonesia.
Learn more: Magnitude scale · Aftershock sequences
Earthquake Details
127.1630°E
Technical Information
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Common Questions
How strong was the magnitude 4.9 earthquake near Tobelo, Indonesia?
The magnitude 4.9 earthquake that struck 95 km W of Tobelo, Indonesia on October 10, 2024 at 07:22 UTC had a depth of 107.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 1.8848°, 127.1630°, which is 95 km W of Tobelo, Indonesia. View all earthquakes in Indonesia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.3 one earlier?
No. This magnitude 4.9 earthquake is an aftershock of the larger magnitude 5.3 mainshock that occurred earlier 62 km W of Tobelo, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Has Indonesia had earthquakes this big before?
The largest recorded earthquake in Indonesia was the M9.1 Indian Ocean earthquake of December 26, 2004. Today's magnitude 4.9 event is significantly smaller than that historical record.
Authoritative source: USGS event page (event ID: us6000nxsh). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 10, 2024). M4.9 Earthquake 95 km W of Tobelo, Indonesia — October 10, 2024. Retrieved December 23, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nxsh/