M4.6 Earthquake in the Pagan region, Northern Mariana Islands — November 18, 2024
2024-11-18 21:42:16 UTC (2024-11-18) · approx. 7:42 AM UTC+10 local
On November 18, 2024 at 21:42 UTC, a magnitude 4.6 intermediate depth earthquake struck in the Pagan region, Northern Mariana Islands, at a depth of 208.9 km and coordinates 18.4948°, 145.8046°. This earthquake was detected by 95 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
145.8046°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake in the Pagan region, Northern Mariana Islands?
The magnitude 4.6 earthquake that struck in the Pagan region, Northern Mariana Islands on November 18, 2024 at 21:42 UTC had a depth of 208.9 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 18.4948°, 145.8046°, which is in the Pagan region, Northern Mariana Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000nsib). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, November 18, 2024). M4.6 Earthquake in the Pagan region, Northern Mariana Islands — November 18, 2024. Retrieved January 30, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000nsib/