This event was reviewed by an analyst and confirmed.
Type Earthquake
Magnitude 0.3 MLv
Local datetime 2025/12/19 00:20
Universal datetime 2025/12/18 23:20
Latitude 45.89 ° ± 0.8 km
Longitude 6.99 ° ± 0.5 km
Depth 6 km (from location) ± 2 km

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See the seismogram of this event.

Near cities

This table shows only the most populated cities around the epicenter.
Name Distance (km) Population
Aosta  31 34062
Sion  48 28045
Cluses  37 17059
Sallanches  30 16088
Bonneville  49 12608
Passy  21 10902
Scionzier  39 8683
Chamonix-Mont-Blanc  7 8611
Bourg-Saint-Maurice  31 7302
Ugine  45 7039
Saint-Pierre-en-Faucigny  52 6573
Marignier  45 6445
Thyez  41 6198
Saint-Gervais-les-Bains  20 5573
Marnaz  40 5521

Past seismicity

  This map shows only the 50 most significant earthquakes around this event.

Event details

Parameters

Evaluation status preliminary
RMS 0.27
Azimuthal gap 80.07 °
Number of stations used 8
Number of phases used 13

Webservices

The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :

QuakeML GeoJSON Text

Phases

Network Station Phase Time Residual (s) Azimuth (°) Distance (°) Mode
FR ARGR Pg 23:20:04.75 -0.05 10.42 0.06 Manual
FR ARGR Sg 23:20:05.100 0.01 10.42 0.06 Manual
FR COURM Pg 23:20:04.96 -0.07 194.88 0.07 Manual
FR COURM Sg 23:20:06.41 0.04 194.88 0.07 Manual
FR CHAMO Sg 23:20:07.12 0.33 284.1 0.09 Manual
GU REMY Pg 23:20:05.85 0 114.81 0.13 Manual
GU REMY Sg 23:20:08.1 0.24 114.81 0.13 Manual
FR HOUCH Pg 23:20:06.38 0.05 273.1 0.15 Manual
FR HOUCH Sg 23:20:08.79 0.2 273.1 0.15 Manual
FR OGSI Sg 23:20:11.1 -0.01 315.44 0.23 Manual
FR RSL Pg 23:20:09.52 -0.01 231.68 0.33 Manual
FR RSL Sg 23:20:13.92 -0.12 231.68 0.33 Manual
CH DIX Sg 23:20:13.83 -0.86 56.8 0.35 Manual