M4.8 Earthquake 82 km ESE of Inarajan Village, Guam — November 18, 2022
2022-11-18 19:18:13 UTC (2022-11-18) · approx. 5:18 AM UTC+10 local
On November 18, 2022 at 19:18 UTC, a magnitude 4.8 shallow crustal earthquake struck 82 km ESE of Inarajan Village, Guam, at a depth of 10.0 km and coordinates 12.9294°, 145.4253°. This earthquake was detected by 38 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
145.4253°E
Technical Information
Common Questions
How strong was the magnitude 4.8 earthquake near Inarajan Village, Guam?
The magnitude 4.8 earthquake that struck 82 km ESE of Inarajan Village, Guam on November 18, 2022 at 19:18 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 12.9294°, 145.4253°, which is 82 km ESE of Inarajan Village, Guam.
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: us7000iruy). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, November 18, 2022). M4.8 Earthquake 82 km ESE of Inarajan Village, Guam — November 18, 2022. Retrieved January 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000iruy/