M4.5 Earthquake 58 km S of Merizo Village, Guam — December 12, 2020
2020-12-12 21:00:06 UTC (2020-12-12) · approx. 7:00 AM UTC+10 local
On December 12, 2020 at 21:00 UTC, a magnitude 4.5 shallow crustal earthquake struck 58 km S of Merizo Village, Guam, at a depth of 35.0 km and coordinates 12.7362°, 144.6659°.
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
144.6659°E
Technical Information
Common Questions
How strong was the magnitude 4.5 earthquake near Merizo Village, Guam?
The magnitude 4.5 earthquake that struck 58 km S of Merizo Village, Guam on December 12, 2020 at 21:00 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 12.7362°, 144.6659°, which is 58 km S 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: us7000crmn). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 12, 2020). M4.5 Earthquake 58 km S of Merizo Village, Guam — December 12, 2020. Retrieved February 20, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000crmn/