This event was reviewed by an analyst and confirmed.
| Type | Earthquake |
| Magnitude | 0.9 MLv |
| Local datetime | 2025/08/23 03:39 |
| Universal datetime | 2025/08/23 01:39 |
| Latitude | 45.86 ° ± 0.1 km |
| Longitude | 6.98 ° ± 0.1 km |
| Depth | 9 km (from location) ± 0.3 km |
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Testify !Near cities
This table shows only the most populated cities around the epicenter.
| Name | Distance (km) | Population |
|---|---|---|
Aosta 
|
29 | 34062 |
Sion 
|
51 | 28045 |
Albertville 
|
50 | 18899 |
| Cluses
|
38 | 17059 |
| Sallanches
|
31 | 16088 |
| Bonneville
|
50 | 12608 |
| Passy
|
21 | 10902 |
| Scionzier
|
40 | 8683 |
| Chamonix-Mont-Blanc
|
9 | 8611 |
| Bourg-Saint-Maurice
|
28 | 7302 |
| Ugine
|
44 | 7039 |
| Marignier
|
46 | 6445 |
| Thyez
|
43 | 6198 |
| Saint-Gervais-les-Bains
|
19 | 5573 |
| Marnaz
|
41 | 5521 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.32 |
| Azimuthal gap | 47.56 ° |
| Number of stations used | 29 |
| Number of phases used | 52 |
Webservices
The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :
Phases
| Network | Station | Phase | Time | Residual (s) | Azimuth (°) | Distance (°) | Mode |
|---|---|---|---|---|---|---|---|
| FR | COURM | Pg | 01:39:03.40 | -0.26 | 196.72 | 0.04 | Manual |
| FR | COURM | Sg | 01:39:04.52 | -0.55 | 196.72 | 0.04 | Manual |
| FR | VALLO | Pg | 01:39:04.41 | 0.3 | 256.1 | 0.09 | Manual |
| FR | VALLO | Sg | 01:39:06.12 | 0.27 | 256.1 | 0.09 | Manual |
| FR | CHAMO | Pg | 01:39:04.8 | -0.09 | 301.86 | 0.1 | Manual |
| FR | CHAMO | Sg | 01:39:05.59 | -0.36 | 301.86 | 0.1 | Manual |
| GU | REMY | Pg | 01:39:04.66 | 0.08 | 101.05 | 0.12 | Manual |
| GU | REMY | Sg | 01:39:06.76 | 0.13 | 101.05 | 0.12 | Manual |
| FR | HOUCH | Pg | 01:39:04.98 | -0.05 | 284.44 | 0.15 | Manual |
| FR | HOUCH | Sg | 01:39:07.14 | -0.28 | 284.44 | 0.15 | Manual |
| FR | OGSI | Pg | 01:39:06.48 | -0.26 | 321.27 | 0.25 | Manual |
| FR | OGSI | Sg | 01:39:09.81 | -0.5 | 321.27 | 0.25 | Manual |
| FR | RSL | Pg | 01:39:07.72 | 0 | 235.31 | 0.3 | Manual |
| FR | RSL | Sg | 01:39:11.60 | -0.39 | 235.31 | 0.3 | Manual |
| CH | DIX | Pg | 01:39:08.57 | -0.36 | 53.49 | 0.37 | Manual |
| CH | DIX | Sg | 01:39:13.40 | -0.65 | 53.49 | 0.37 | Manual |
| GU | LSD | Pg | 01:39:09.85 | 0.05 | 165.01 | 0.42 | Manual |
| GU | LSD | Sg | 01:39:15.10 | -0.42 | 165.01 | 0.42 | Manual |
| FR | OGCY | Pg | 01:39:10.13 | 0.03 | 205.93 | 0.43 | Manual |
| FR | OGCY | Sg | 01:39:16.11 | 0.08 | 205.93 | 0.43 | Manual |
| CH | AIGLE | Pg | 01:39:10.78 | -0.2 | 357.65 | 0.48 | Manual |
| CH | AIGLE | Sg | 01:39:16.80 | -0.74 | 357.65 | 0.48 | Manual |
| GU | CIRO | Pg | 01:39:10.88 | -0.22 | 122.1 | 0.49 | Manual |
| GU | CIRO | Sg | 01:39:17.13 | -0.6 | 122.1 | 0.49 | Manual |
| FR | TAMIE | Pg | 01:39:11.55 | 0.14 | 250.13 | 0.5 | Manual |
| FR | TAMIE | Sg | 01:39:18.22 | -0.05 | 250.13 | 0.5 | Manual |
| FR | OGVA | Pg | 01:39:11.56 | -0.01 | 336.12 | 0.51 | Manual |
| FR | OGVA | Sg | 01:39:18.55 | 0.01 | 336.12 | 0.51 | Manual |
| FR | OG02 | Pg | 01:39:13.99 | 0.67 | 299.14 | 0.61 | Manual |
| FR | OG02 | Sg | 01:39:21.75 | 0.24 | 299.14 | 0.61 | Manual |
| FR | OGMO | Pg | 01:39:14.68 | -0.14 | 197.9 | 0.69 | Manual |
| FR | OGMO | Sg | 01:39:23.54 | -0.52 | 197.9 | 0.69 | Manual |
| FR | OGSA | Pg | 01:39:19.6 | -0.14 | 206.55 | 0.92 | Manual |
| FR | OGSM | Pg | 01:39:19.76 | 0.3 | 254.77 | 0.93 | Manual |
| FR | OGSM | Sg | 01:39:32.35 | 0.4 | 254.77 | 0.93 | Manual |
| FR | PRABE | Pg | 01:39:19.17 | -0.32 | 228.25 | 0.94 | Manual |
| FR | PRABE | Sg | 01:39:31.85 | -0.17 | 228.25 | 0.94 | Manual |
| GU | RRL | Pg | 01:39:19.43 | -0.34 | 188.19 | 0.95 | Manual |
| GU | RRL | Sg | 01:39:32.30 | -0.18 | 188.19 | 0.95 | Manual |
| FR | OGJA | Pg | 01:39:20.0 | -0.14 | 191.47 | 0.97 | Manual |
| FR | OGJA | Sg | 01:39:32.100 | -0.13 | 191.47 | 0.97 | Manual |
| FR | CHA2 | Pg | 01:39:21.34 | -0.54 | 226.15 | 1.06 | Manual |
| FR | GRN | Pg | 01:39:22.30 | 0.32 | 234.92 | 1.07 | Manual |
| FR | OGVG | Pg | 01:39:24.74 | 0.06 | 210.66 | 1.21 | Manual |
| RD | ORIF | Pg | 01:39:24.89 | 0.05 | 219.83 | 1.22 | Manual |
| RD | ORIF | Sg | 01:39:41.8 | -0.04 | 219.83 | 1.22 | Manual |
| FR | CHMF | Pg | 01:39:28.82 | 0.53 | 350.81 | 1.41 | Manual |
| FR | CHMF | Sg | 01:39:47.8 | 0.12 | 350.81 | 1.41 | Manual |
| FR | BOUC | Pg | 01:39:29.71 | 0.16 | 340.4 | 1.47 | Manual |
| FR | BOUC | Sg | 01:39:48.81 | -0.31 | 340.4 | 1.47 | Manual |
| CH | BOURR | Pg | 01:39:30.93 | 0.09 | 6.29 | 1.54 | Manual |
| CH | BALST | Pg | 01:39:31.34 | 0.27 | 18.19 | 1.55 | Manual |