M4.7 Earthquake near Reykjanes Ridge — January 4, 2023
2023-01-04 02:25:04 UTC (2023-01-04) · approx. 12:25 AM UTC-2 local
On January 4, 2023 at 02:25 UTC, a magnitude 4.7 shallow crustal earthquake struck near Reykjanes Ridge, at a depth of 10.0 km and coordinates 53.9400°, -35.0776°. This earthquake was detected by 77 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
-35.0776°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 January 4, 2023 at 02:25 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 53.9400°, -35.0776°, 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: us7000j1zl). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 4, 2023). M4.7 Earthquake near Reykjanes Ridge — January 4, 2023. Retrieved March 11, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j1zl/