4.3

M4.3 Earthquake 65 km NW of Malfa, ItalyNovember 14, 2023

2023-11-14 22:43:42 UTC (2023-11-14) · approx. 11:43 PM UTC+1 local

MagnitudeM4.3(mb)
Time22:43 UTC11:43 PM UTC+1
Depth355.6 kmdeep-focus
Coordinates39.050°, 14.380°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 14, 2023 at 22:43 UTC, a magnitude 4.3 deep-focus earthquake struck 65 km NW of Malfa, Italy, at a depth of 355.6 km and coordinates 39.0501°, 14.3804°.

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 39.05°, 14.38°

Earthquake Details

Magnitude
4.3 mb
Depth
355.6 km
deep-focus
Location
39.0501°N
14.3804°E

Technical Information

Event ID
us6000lnfx
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Stations Used
53
Azimuthal Gap
51.0°
Min Station Distance
1.456°
RMS Residual
0.76 sec
Last Updated
2024-01-26 16:37:42 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Malfa, Italy?

The magnitude 4.3 earthquake that struck 65 km NW of Malfa, Italy on November 14, 2023 at 22:43 UTC had a depth of 355.6 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: us6000lnfx). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, November 14, 2023). M4.3 Earthquake 65 km NW of Malfa, ItalyNovember 14, 2023. Retrieved January 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000lnfx/