M4.8 Earthquake in the Maug Islands region, Northern Mariana Islands — January 14, 2023
2023-01-14 16:53:14 UTC (2023-01-14) · approx. 2:53 AM UTC+10 local
On January 14, 2023 at 16:53 UTC, a magnitude 4.8 intermediate depth earthquake struck in the Maug Islands region, Northern Mariana Islands, at a depth of 110.0 km and coordinates 19.9758°, 145.5889°. This earthquake was detected by 63 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
145.5889°E
Technical Information
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Common Questions
How strong was the magnitude 4.8 earthquake in the Maug Islands region, Northern Mariana Islands?
The magnitude 4.8 earthquake that struck in the Maug Islands region, Northern Mariana Islands on January 14, 2023 at 16:53 UTC had a depth of 110.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 19.9758°, 145.5889°, which is in the Maug Islands 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: us7000j4eg). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 14, 2023). M4.8 Earthquake in the Maug Islands region, Northern Mariana Islands — January 14, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000j4eg/