4.2

M4.2 Earthquake 77 km WSW of Palaióchora, GreeceSeptember 30, 2024

2024-09-30 17:52:17 UTC (2024-09-30) · approx. 7:52 PM UTC+2 local

MagnitudeM4.2(mb)
Time17:52 UTC7:52 PM UTC+2
Depth57.6 kmshallow crustal
Coordinates34.945°, 22.904°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 30, 2024 at 17:52 UTC, a magnitude 4.2 shallow crustal earthquake struck 77 km WSW of Palaióchora, Greece, at a depth of 57.6 km and coordinates 34.9451°, 22.9038°.

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 34.95°, 22.90°

Earthquake Details

Magnitude
4.2 mb
Depth
57.6 km
shallow crustal
Location
34.9451°N
22.9038°E

Technical Information

Event ID
us7000nmeu
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
34
Azimuthal Gap
95.0°
Min Station Distance
1.664°
RMS Residual
0.68 sec
Last Updated
2024-12-14 14:51:04 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Palaióchora, Greece?

The magnitude 4.2 earthquake that struck 77 km WSW of Palaióchora, Greece on September 30, 2024 at 17:52 UTC had a depth of 57.6 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 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us7000nmeu). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, September 30, 2024). M4.2 Earthquake 77 km WSW of Palaióchora, GreeceSeptember 30, 2024. Retrieved December 14, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000nmeu/