M4.8 Earthquake in the Pagan region, Northern Mariana Islands — April 7, 2023
2023-04-07 07:12:02 UTC (2023-04-07) · approx. 5:12 PM UTC+10 local
On April 7, 2023 at 07:12 UTC, a magnitude 4.8 intermediate depth earthquake struck in the Pagan region, Northern Mariana Islands, at a depth of 154.2 km and coordinates 18.7114°, 145.7711°. This earthquake was detected by 82 seismic stations with good location accuracy and was assigned a USGS significance rating of 354, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
145.7711°E
Technical Information
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Common Questions
How strong was the magnitude 4.8 earthquake in the Pagan region, Northern Mariana Islands?
The magnitude 4.8 earthquake that struck in the Pagan region, Northern Mariana Islands on April 7, 2023 at 07:12 UTC had a depth of 154.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 18.7114°, 145.7711°, which is in the Pagan region, Northern Mariana Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000k2lv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 7, 2023). M4.8 Earthquake in the Pagan region, Northern Mariana Islands — April 7, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000k2lv/