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M4.0 earthquake 62 km S of Karyes, Mount Athos, Greece

A magnitude 4.0 earthquake struck 62 km S of Karyes, Mount Athos, Greece at 15:16 local time (13:16 UTC) on 31 Oct 2026, at a depth of 10 km, according to GFZ. The solution is preliminary and may be revised.

Data: GFZ · updated 2026-10-31 13:16 UTC · automatic solution

Magnitude
4.0light
moment magnitude (Mw)
Depth
10 km
Status
Automatic
Origin time
2026-10-31 13:16:01 UTC
Local: 31 Oct 2026, 15:16:01 (Europe/Athens)
Epicentre
39.702° N, 24.273° E

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
KaryesMount Athos, Greece · pop. 23762 kmIIWeak
MýrinaNorth Aegean, Greece · pop. 5,40670 kmIIWeak
VolosThessaly, Greece · pop. 86,048119 kmINot felt
Néa IoníaThessaly, Greece · pop. 31,884121 kmINot felt
KaválaEast Macedonia and Thrace, Greece · pop. 54,027138 kmINot felt
PylaíaCentral Macedonia, Greece · pop. 36,843148 kmINot felt
ThessaloníkiCentral Macedonia, Greece · pop. 317,778155 kmINot felt
AthensAttica, Greece · pop. 664,046197 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more. Likely felt out to about 43 km.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses GFZ.

AgencyMagnitudeDepthEpicentreTime offsetStatus
GFZheadlineGFZ via GEOFON, GFZ Helmholtz Centre for Geosciences4.0 Mw10 km39.70° N, 24.27° E–Automatic

How big was it?

Widely felt near the epicentre: rattling windows and objects. Significant damage is unlikely.

It released roughly the energy of 16 t of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 10 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M4.0 releases about 33× the energy of M3.0, and its waves are about 10× taller on a seismogram. Energy: 16 t of TNT vs 477 kg of TNT.

Each square is the energy of one M3.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

No later earthquakes have been recorded within 30 km so far. 2 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

How strong was the shaking where you were?

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Reports on SeismoAtlas

No reports yet.

Event id gfz2026vipr. First recorded here 2 Nov 2026, 07:53:50 UTC. Solutions: GFZ (geofon:gfz2026vipr). Cite as: SeismoAtlas, “M4.0 earthquake 62 km S of Karyes, Mount Athos, Greece”, https://seismoatlas.com/earthquake/gfz2026vipr-m4-0-earthquake-62-km-s-of-karyes-mount-athos-greece, data from GFZ.

JSON: /api/v1/events/gfz2026vipr. SeismoAtlas is not an official warning service.