M4.3 Earthquake 208 km NNW of Tobelo, Indonesia — March 13, 2025
2025-03-13 23:03:46 UTC (2025-03-13) · approx. 7:03 AM UTC+8 local
On March 13, 2025 at 23:03 UTC, a magnitude 4.3 shallow crustal earthquake struck 208 km NNW of Tobelo, Indonesia, at a depth of 38.7 km and coordinates 3.4956°, 127.3521°.
Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — 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 5.4 mainshock that occurred 23 days ago 162 km NNW of Tobelo, Indonesia. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for days to weeks as stresses on surrounding faults redistribute.
Earthquake Details
127.3521°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.3 earthquake near Tobelo, Indonesia?
The magnitude 4.3 earthquake that struck 208 km NNW of Tobelo, Indonesia on March 13, 2025 at 23:03 UTC had a depth of 38.7 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 4.3 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M5.4 one earlier?
No. This magnitude 4.3 earthquake is an aftershock of the larger magnitude 5.4 mainshock that occurred earlier 162 km NNW of Tobelo, Indonesia. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
Actions
Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000pln6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 13, 2025). M4.3 Earthquake 208 km NNW of Tobelo, Indonesia — March 13, 2025. Retrieved May 17, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pln6/