4.5

M4.5 Earthquake near Reykjanes RidgeSeptember 28, 2022

2022-09-28 23:54:02 UTC (2022-09-28) · approx. 9:54 PM UTC-2 local

MagnitudeM4.5(mb)
Time23:54 UTC9:54 PM UTC-2
Depth10.0 kmshallow crustal
Coordinates53.690°, -35.289°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 28, 2022 at 23:54 UTC, a magnitude 4.5 shallow crustal earthquake struck near Reykjanes Ridge, at a depth of 10.0 km and coordinates 53.6897°, -35.2888°. This earthquake was detected by 22 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

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.

Map showing earthquake epicenter at 53.69°, -35.29°

Earthquake Details

Magnitude
4.5 mb
Depth
10.0 km
shallow crustal
Location
53.6897°N
-35.2888°E

Technical Information

Event ID
us6000iqt7
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
22
Azimuthal Gap
149.0°
Min Station Distance
18.385°
RMS Residual
0.60 sec
Last Updated
2024-01-18 16:55:59 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Reykjanes Ridge?

The magnitude 4.5 earthquake that struck near Reykjanes Ridge on September 28, 2022 at 23:54 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 53.6897°, -35.2888°, which is near Reykjanes Ridge.

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.

Authoritative source: USGS event page (event ID: us6000iqt7). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, September 28, 2022). M4.5 Earthquake near Reykjanes RidgeSeptember 28, 2022. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000iqt7/