4.5

M4.5 Earthquake 45 km SW of Palaióchora, GreeceJuly 20, 2024

2024-07-20 15:38:06 UTC (2024-07-20) · approx. 5:38 PM UTC+2 local

Felt by 1 person across nearby locations.

MagnitudeM4.5(mb)
Time15:38 UTC5:38 PM UTC+2
Depth8.4 kmshallow crustal
Coordinates34.896°, 23.385°
Felt by1DYFI response
Status✓ Reviewed by USGS

On July 20, 2024 at 15:38 UTC, a magnitude 4.5 shallow crustal earthquake struck 45 km SW of Palaióchora, Greece, at a depth of 8.4 km and coordinates 34.8964°, 23.3852°. This earthquake was detected by 147 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 34.90°, 23.39°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.5 earthquake near 45 km SW of Palaióchora, Greece

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.5 mb
Depth
8.4 km
shallow crustal
Location
34.8964°N
23.3852°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us7000n0hk
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
147
Azimuthal Gap
57.0°
Min Station Distance
1.294°
RMS Residual
0.75 sec
Last Updated
2024-09-28 22:42:43 UTC

Common Questions

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

The magnitude 4.5 earthquake that struck 45 km SW of Palaióchora, Greece on July 20, 2024 at 15:38 UTC had a depth of 8.4 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 34.8964°, 23.3852°, which is 45 km SW of Palaióchora, 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: us7000n0hk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, July 20, 2024). M4.5 Earthquake 45 km SW of Palaióchora, GreeceJuly 20, 2024. Retrieved September 28, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000n0hk/