M4.7 Earthquake 237 km NE of Saipan, Northern Mariana Islands — July 13, 2022
2022-07-13 11:08:35 UTC (2022-07-13) · approx. 9:08 PM UTC+10 local
On July 13, 2022 at 11:08 UTC, a magnitude 4.7 shallow crustal earthquake struck 237 km NE of Saipan, Northern Mariana Islands, at a depth of 45.1 km and coordinates 16.8039°, 147.2383°. This earthquake was detected by 63 seismic stations with good location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
147.2383°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.7 earthquake near Saipan, Northern Mariana Islands?
The magnitude 4.7 earthquake that struck 237 km NE of Saipan, Northern Mariana Islands on July 13, 2022 at 11:08 UTC had a depth of 45.1 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 16.8039°, 147.2383°, which is 237 km NE of Saipan, Northern Mariana Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000i22b). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, July 13, 2022). M4.7 Earthquake 237 km NE of Saipan, Northern Mariana Islands — July 13, 2022. Retrieved September 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i22b/