This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.7 MLv |
| Local datetime | 2025/07/23 11:00 |
| Universal datetime | 2025/07/23 09:00 |
| Latitude | 47.52 ° ± 0.2 km |
| Longitude | -2.30 ° ± 0.2 km |
| Depth | 0 km (from location) ± 0.0 km |
Near cities
This table shows only the most populated cities around the epicenter.
| Name | Distance (km) | Population |
|---|---|---|
Saint-Nazaire 
|
26 | 69993 |
| La Baule-Escoublac
|
25 | 16132 |
| Guérande
|
22 | 15873 |
| Pontchâteau
|
18 | 10684 |
| Pornichet
|
28 | 10669 |
| Redon
|
23 | 9014 |
| Theix-Noyalo
|
30 | 7966 |
| Donges
|
26 | 7961 |
| Trignac
|
24 | 7868 |
| Questembert
|
20 | 7585 |
| Montoir-de-Bretagne
|
25 | 7088 |
| Herbignac
|
8 | 6822 |
| Saint-André-des-Eaux
|
21 | 6473 |
| Missillac
|
9 | 5342 |
| Muzillac
|
14 | 5015 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.34 |
| Azimuthal gap | 137.53 ° |
| Number of stations used | 10 |
| Number of phases used | 20 |
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 | BEGF | Pg | 09:00:39.77 | -0.02 | 13.48 | 0.1 | Manual |
| FR | BEGF | Sg | 09:00:41.37 | 0.25 | 13.48 | 0.1 | Manual |
| RA | UBVA | Pg | 09:00:44.4 | -0.16 | 293.32 | 0.33 | Manual |
| RA | UBVA | Sg | 09:00:48.68 | 0.15 | 293.32 | 0.33 | Manual |
| FR | GUEF | Pg | 09:00:46.15 | -0.03 | 328.71 | 0.44 | Manual |
| FR | GUEF | Sg | 09:00:52.71 | 0.71 | 328.71 | 0.44 | Manual |
| FR | PLOF | Pg | 09:00:52.99 | 0.04 | 287.23 | 0.8 | Manual |
| FR | PLOF | Sg | 09:01:03.63 | -0.13 | 287.23 | 0.8 | Manual |
| FR | PLEF | Pg | 09:00:56.66 | 0.37 | 358.59 | 0.98 | Manual |
| FR | PLEF | Sg | 09:01:10.45 | 0.9 | 358.59 | 0.98 | Manual |
| RD | ROSF | Pg | 09:00:57.92 | 0.29 | 321.71 | 1.05 | Manual |
| RD | ROSF | Sg | 09:01:12.1 | 0.15 | 321.71 | 1.05 | Manual |
| FR | CRNF | Pg | 09:00:59.83 | -0.25 | 108.14 | 1.18 | Manual |
| FR | CRNF | Sg | 09:01:16.74 | 0.64 | 108.14 | 1.18 | Manual |
| FR | LGIF | Pg | 09:01:00.81 | 0.02 | 149.7 | 1.22 | Manual |
| FR | LGIF | Sg | 09:01:17.38 | 0.05 | 149.7 | 1.22 | Manual |
| FR | MTNF | Pg | 09:01:01.23 | 0.17 | 51.66 | 1.24 | Manual |
| FR | MTNF | Sg | 09:01:17.60 | -0.19 | 51.66 | 1.24 | Manual |
| FR | LOUF | Pg | 09:01:03.20 | 0.11 | 29.88 | 1.35 | Manual |
| FR | LOUF | Sg | 09:01:21.7 | -0.24 | 29.88 | 1.35 | Manual |