4.5

M4.5 Earthquake 5 km WNW of Paramythi?, GreeceNovember 7, 2023

2023-11-07 18:30:05 UTC (2023-11-07) · approx. 7:30 PM UTC+1 local

MagnitudeM4.5(mb)
Time18:30 UTC7:30 PM UTC+1
Depth18.6 kmshallow crustal
Coordinates39.486°, 20.447°
Felt byNo felt reports
Status✓ Reviewed by USGS

On November 7, 2023 at 18:30 UTC, a magnitude 4.5 shallow crustal earthquake struck 5 km WNW of Paramythi?, Greece, at a depth of 18.6 km and coordinates 39.4858°, 20.4468°. This earthquake was detected by 67 seismic stations with excellent 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.

The epicenter is located in Greece, a region characterized by the Hellenic subduction zone, where the African Plate subducts northward beneath the Aegean at roughly 35 mm per year. The nearest mapped fault system is the Hellenic Trench. View all earthquakes in Greece.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at 39.49°, 20.45°

Earthquake Details

Magnitude
4.5 mb
Depth
18.6 km
shallow crustal
Location
39.4858°N
20.4468°E

Technical Information

Event ID
us7000l9ei
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
67
Azimuthal Gap
54.0°
Min Station Distance
1.634°
RMS Residual
1.06 sec
Last Updated
2024-01-18 21:16:56 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Paramythi?, Greece?

The magnitude 4.5 earthquake that struck 5 km WNW of Paramythi?, Greece on November 7, 2023 at 18:30 UTC had a depth of 18.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 39.4858°, 20.4468°, which is 5 km WNW of Paramythi?, Greece. View all earthquakes in Greece.

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.

Has Greece had earthquakes this big before?

The largest recorded earthquake in Greece was the M8.5 Crete earthquake of June 29, 1303. Today's magnitude 4.5 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us7000l9ei). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, November 7, 2023). M4.5 Earthquake 5 km WNW of Paramythi?, GreeceNovember 7, 2023. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000l9ei/