M3.0 Earthquake near Mona Passage — October 29, 2023
2023-10-29 18:11:55 UTC (2023-10-29) · approx. 2:11 PM UTC-4 local
On October 29, 2023 at 18:11 UTC, a magnitude 3.0 intermediate depth earthquake struck near Mona Passage, at a depth of 99.6 km and coordinates 18.1015°, -67.2327°.
Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 567 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 77 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
-67.2327°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near Mona Passage?
The magnitude 3.0 earthquake that struck near Mona Passage on October 29, 2023 at 18:11 UTC had a depth of 99.6 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71430333). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, October 29, 2023). M3.0 Earthquake near Mona Passage — October 29, 2023. Retrieved October 29, 2023 from https://www.earthquaketracker.org/earthquakes/event/pr71430333/