M4.3 Earthquake in the Maug Islands region, Northern Mariana Islands — November 25, 2023
2023-11-25 22:53:59 UTC (2023-11-25) · approx. 8:53 AM UTC+10 local
On November 25, 2023 at 22:53 UTC, a magnitude 4.3 shallow crustal earthquake struck in the Maug Islands region, Northern Mariana Islands, at a depth of 9.2 km and coordinates 20.2504°, 145.6071°.
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.
Earthquake Details
145.6071°E
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Common Questions
How strong was the magnitude 4.3 earthquake in the Maug Islands region, Northern Mariana Islands?
The magnitude 4.3 earthquake that struck in the Maug Islands region, Northern Mariana Islands on November 25, 2023 at 22:53 UTC had a depth of 9.2 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.
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Understanding This Data
Magnitude 4.3 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000leu0). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 25, 2023). M4.3 Earthquake in the Maug Islands region, Northern Mariana Islands — November 25, 2023. Retrieved February 1, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000leu0/