4.3

M4.3 Earthquake 23 km ENE of Menídi, GreeceOctober 11, 2023

2023-10-11 18:45:41 UTC (2023-10-11) · approx. 7:45 PM UTC+1 local

MagnitudeM4.3(mb)
Time18:45 UTC7:45 PM UTC+1
Depth41.1 kmshallow crustal
Coordinates39.102°, 21.379°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 11, 2023 at 18:45 UTC, a magnitude 4.3 shallow crustal earthquake struck 23 km ENE of Menídi, Greece, at a depth of 41.1 km and coordinates 39.1017°, 21.3788°.

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 39.10°, 21.38°

Earthquake Details

Magnitude
4.3 mb
Depth
41.1 km
shallow crustal
Location
39.1017°N
21.3788°E

Technical Information

Event ID
us6000lg5z
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
73
Azimuthal Gap
57.0°
Min Station Distance
1.318°
RMS Residual
1.03 sec
Last Updated
2023-12-16 22:13:09 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Menídi, Greece?

The magnitude 4.3 earthquake that struck 23 km ENE of Menídi, Greece on October 11, 2023 at 18:45 UTC had a depth of 41.1 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: us6000lg5z). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, October 11, 2023). M4.3 Earthquake 23 km ENE of Menídi, GreeceOctober 11, 2023. Retrieved December 16, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lg5z/