M4.4 Earthquake 91 km NW of Saipan, Northern Mariana Islands — October 14, 2022
2022-10-14 21:14:01 UTC (2022-10-14) · approx. 7:14 AM UTC+10 local
On October 14, 2022 at 21:14 UTC, a magnitude 4.4 shallow crustal earthquake struck 91 km NW of Saipan, Northern Mariana Islands, at a depth of 9.6 km and coordinates 15.8641°, 145.2253°.
Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
145.2253°E
Technical Information
Common Questions
How strong was the magnitude 4.4 earthquake near Saipan, Northern Mariana Islands?
The magnitude 4.4 earthquake that struck 91 km NW of Saipan, Northern Mariana Islands on October 14, 2022 at 21:14 UTC had a depth of 9.6 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 4.4 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.4 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000iv5p). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 14, 2022). M4.4 Earthquake 91 km NW of Saipan, Northern Mariana Islands — October 14, 2022. Retrieved December 17, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iv5p/