4.6

M4.6 Earthquake 18 km E of Istiaía, GreeceAugust 26, 2024

2024-08-26 19:53:43 UTC (2024-08-26) · approx. 9:53 PM UTC+2 local

Felt by 50 people across nearby locations.

MagnitudeM4.6(mwr)
Time19:53 UTC9:53 PM UTC+2
Depth10.0 kmshallow crustal
Coordinates38.949°, 23.366°
Felt by50DYFI responses
Status✓ Reviewed by USGS

On August 26, 2024 at 19:53 UTC, a magnitude 4.6 shallow crustal earthquake struck 18 km E of Istiaía, Greece, at a depth of 10.0 km and coordinates 38.9494°, 23.3657°. This earthquake was detected by 78 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 348, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 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 38.95°, 23.37°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 50 citizen responses 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 M4.6 earthquake near 18 km E of Istiaía, Greece

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

Earthquake Details

Magnitude
4.6 mwr
Depth
10.0 km
shallow crustal
Location
38.9494°N
23.3657°E
Felt Reports
50
DYFI responses
Community Intensity
4.5
CDI from reports

Technical Information

Event ID
us6000nmxi
Event Type
earthquake
Status
✓ Reviewed
Significance
348
Stations Used
78
Azimuthal Gap
36.0°
Min Station Distance
0.806°
RMS Residual
0.66 sec
Last Updated
2024-11-09 21:18:24 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Istiaía, Greece?

The magnitude 4.6 earthquake that struck 18 km E of Istiaía, Greece on August 26, 2024 at 19:53 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 38.9494°, 23.3657°, which is 18 km E of Istiaía, Greece. View all earthquakes in Greece.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 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 4.6 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000nmxi). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, August 26, 2024). M4.6 Earthquake 18 km E of Istiaía, GreeceAugust 26, 2024. Retrieved November 9, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000nmxi/