4.8

M4.8 Earthquake 8 km W of Skiáthos, GreeceApril 28, 2026

2026-04-28 13:07:46 UTC (3 hours ago) · approx. 3:07 PM UTC+2 local

Felt by 3 people across nearby locations.

MagnitudeM4.8(mww)
Time13:07 UTC3:07 PM UTC+2
Depth9.8 kmshallow crustal
Coordinates39.170°, 23.392°
Felt by3DYFI responses
Status✓ Reviewed by USGS

On April 28, 2026 at 13:07 UTC, a magnitude 4.8 shallow crustal earthquake struck 8 km W of Skiáthos, Greece, at a depth of 9.8 km and coordinates 39.1704°, 23.3922°. This earthquake was detected by 134 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 356, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — 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 39.17°, 23.39°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 3 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 M4.8 earthquake near 8 km W of Skiáthos, Greece

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

Earthquake Details

Magnitude
4.8 mww
Depth
9.8 km
shallow crustal
Location
39.1704°N
23.3922°E
Felt Reports
3
DYFI responses
Community Intensity
5.3
CDI from reports

Technical Information

Event ID
us7000sgnb
Event Type
earthquake
Status
✓ Reviewed
Significance
356
Stations Used
134
Azimuthal Gap
29.0°
Min Station Distance
0.835°
RMS Residual
0.54 sec
Last Updated
2026-04-28 16:06:14 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Skiáthos, Greece?

The magnitude 4.8 earthquake that struck 8 km W of Skiáthos, Greece on April 28, 2026 at 13:07 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 39.1704°, 23.3922°, which is 8 km W of Skiáthos, Greece. View all earthquakes in Greece.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 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 4.8 event is significantly smaller than that historical record.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000sgnb). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 28, 2026). M4.8 Earthquake 8 km W of Skiáthos, GreeceApril 28, 2026. Retrieved April 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000sgnb/