4.6

M4.6 Earthquake 3 km W of Thívai, Greece — September 30, 2026

2026-09-30 05:20:59 UTC (4 hours ago) · approx. 7:20 AM UTC+2 local

MagnitudeM4.6(mb)
Time05:20 UTC≈ 7:20 AM UTC+2
Depth9.8 kmshallow crustal
Coordinates38.328°, 23.279°
Felt byNo felt reports
Status✓ Reviewed by USGS

On September 30, 2026 at 05:20 UTC, a magnitude 4.6 shallow crustal earthquake struck 3 km W of Thívai, Greece, at a depth of 9.8 km and coordinates 38.3276°, 23.2795°. This earthquake was detected by 34 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 326, 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 38.33°, 23.28°

Earthquake Details

Magnitude
4.6 mb
Depth
9.8 km
shallow crustal
Location
38.3276°N
23.2795°E

Technical Information

Event ID
us6000tyhn
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Stations Used
34
Azimuthal Gap
63.0°
Min Station Distance
1.012°
RMS Residual
0.55 sec
Last Updated
2026-09-30 09:01:31 UTC

Common Questions

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

The magnitude 4.6 earthquake that struck 3 km W of Thívai, Greece on September 30, 2026 at 05:20 UTC had a depth of 9.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 38.3276°, 23.2795°, which is 3 km W of Thívai, 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: us6000tyhn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, September 30, 2026). M4.6 Earthquake 3 km W of Thívai, Greece — September 30, 2026. Retrieved September 30, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tyhn/