M4.7 Earthquake 162 km S of Colonia, Micronesia — July 17, 2020
2020-07-17 22:23:14 UTC (2020-07-17) · approx. 7:23 AM UTC+9 local
On July 17, 2020 at 22:23 UTC, a magnitude 4.7 shallow crustal earthquake struck 162 km S of Colonia, Micronesia, at a depth of 10.0 km and coordinates 8.0636°, 137.9225°.
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
137.9225°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Colonia, Micronesia?
The magnitude 4.7 earthquake that struck 162 km S of Colonia, Micronesia on July 17, 2020 at 22:23 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 8.0636°, 137.9225°, which is 162 km S of Colonia, Micronesia.
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: us6000b2u5). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, July 17, 2020). M4.7 Earthquake 162 km S of Colonia, Micronesia — July 17, 2020. Retrieved September 26, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000b2u5/