4.3

M4.3 Earthquake near Greenland SeaAugust 2, 2023

2023-08-02 22:35:38 UTC (2023-08-02) · approx. 10:35 PM UTC+0 local

MagnitudeM4.3(mb)
Time22:35 UTC10:35 PM UTC+0
Depth9.8 kmshallow crustal
Coordinates75.638°, 7.389°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 2, 2023 at 22:35 UTC, a magnitude 4.3 shallow crustal earthquake struck near Greenland Sea, at a depth of 9.8 km and coordinates 75.6380°, 7.3888°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 75.64°, 7.39°

Earthquake Details

Magnitude
4.3 mb
Depth
9.8 km
shallow crustal
Location
75.6380°N
7.3888°E

Technical Information

Event ID
us6000kzcg
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
37
Azimuthal Gap
56.0°
Min Station Distance
3.269°
RMS Residual
0.93 sec
Last Updated
2023-10-07 21:39:01 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Greenland Sea?

The magnitude 4.3 earthquake that struck near Greenland Sea on August 2, 2023 at 22:35 UTC had a depth of 9.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000kzcg). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, August 2, 2023). M4.3 Earthquake near Greenland SeaAugust 2, 2023. Retrieved October 7, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kzcg/