M4.5 Earthquake 299 km SSW of Merizo Village, Guam — September 23, 2020
2020-09-23 16:05:56 UTC (2020-09-23) · approx. 2:05 AM UTC+10 local
On September 23, 2020 at 16:05 UTC, a magnitude 4.5 shallow crustal earthquake struck 299 km SSW of Merizo Village, Guam, at a depth of 10.0 km and coordinates 10.8212°, 143.4812°.
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
143.4812°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Merizo Village, Guam?
The magnitude 4.5 earthquake that struck 299 km SSW of Merizo Village, Guam on September 23, 2020 at 16:05 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 10.8212°, 143.4812°, which is 299 km SSW of Merizo Village, Guam.
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: us6000c2jl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, September 23, 2020). M4.5 Earthquake 299 km SSW of Merizo Village, Guam — September 23, 2020. Retrieved December 5, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000c2jl/