M4.7 Earthquake near Reykjanes Ridge — August 21, 2022
2022-08-21 15:27:04 UTC (2022-08-21) · approx. 1:27 PM UTC-2 local
On August 21, 2022 at 15:27 UTC, a magnitude 4.7 shallow crustal earthquake struck near Reykjanes Ridge, at a depth of 10.0 km and coordinates 60.5140°, -28.6917°. This earthquake was detected by 184 seismic stations with excellent 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
-28.6917°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Reykjanes Ridge?
The magnitude 4.7 earthquake that struck near Reykjanes Ridge on August 21, 2022 at 15:27 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 60.5140°, -28.6917°, which is near Reykjanes Ridge.
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: us6000icjm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, August 21, 2022). M4.7 Earthquake near Reykjanes Ridge — August 21, 2022. Retrieved November 1, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000icjm/