M4.5 Earthquake 180 km ESE of Saipan, Northern Mariana Islands — November 19, 2023
2023-11-19 20:17:57 UTC (2023-11-19) · approx. 6:17 AM UTC+10 local
On November 19, 2023 at 20:17 UTC, a magnitude 4.5 shallow crustal earthquake struck 180 km ESE of Saipan, Northern Mariana Islands, at a depth of 10.0 km and coordinates 14.5401°, 147.2785°. This earthquake was detected by 23 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
147.2785°E
Technical Information
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Common Questions
How strong was the magnitude 4.5 earthquake near Saipan, Northern Mariana Islands?
The magnitude 4.5 earthquake that struck 180 km ESE of Saipan, Northern Mariana Islands on November 19, 2023 at 20:17 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 14.5401°, 147.2785°, which is 180 km ESE of Saipan, Northern Mariana Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000lqbu). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, November 19, 2023). M4.5 Earthquake 180 km ESE of Saipan, Northern Mariana Islands — November 19, 2023. Retrieved February 1, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lqbu/