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Switzerland · Valais/Wallis

M0.4 Earthquake near Vionnaz, Valais/Wallis (Switzerland)

UTC time: 2026-09-17 23:48:21 UTC Local time: —

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About this earthquake

A magnitude M0.4 earthquake was recorded near Vionnaz, Valais/Wallis (Switzerland) on September 17, 2026 at 23:48 UTC. With a focal depth of about 1 km, this was a shallow earthquake, whose shaking is usually felt more strongly at the surface. Earthquakes of this small magnitude are usually barely noticeable and cause no damage.

Switzerland: 2 earthquakes were recorded in the past 24 hours, the strongest reaching M1.0.

Details

ID
06e96acf398e1bb582f9c1899c087d9852d7bb1e
Magnitude
M0.4
Depth
1.1 km
UTC time
2026-09-17 23:48:21 UTC
Local time
—
Country
Switzerland
State
Valais/Wallis
City
Vionnaz
County
Monthey
Village
Vionnaz
Source
sed_ethz
Coordinates
46.30286, 6.85018
Temperature
8.6°C

Depth profile

Depth profile Depth: 1.1 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 1.1 km
Shallow
1.1 km
1.1 km — shallower than the regional average (4.7 km)
Regional average: 4.7 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Volcanoes nearby

  • Chaine des Puys
    Distance: 304 km ·Lava dome(s) ·Elevation: 1'464 m ·Last eruption: -4040 ·France
  • West Eifel Volcanic Field
    Distance: 430 km ·Volcanic field ·Elevation: 600 m ·Last eruption: -8300 ·Germany

Radius · 50 km

Nearby infrastructure

Up to 3 nearest sites per category

Nuclear power plants

  • Lucens nuclear power plantSwitzerlandPermanently shut downReactor units at site: 1
    43.4 kmStraight-line distance

Source: Global Energy Monitor · Global Nuclear Power Tracker · Dataset date: 2026-08

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Switzerland

Context for this earthquake

20 Sep 2025 – 20 Sep 2026 · M ≥ 2.0 · 61 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · Switzerland

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Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Switzerland

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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