This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.8 MLv |
| Local datetime | 2025/02/27 11:49 |
| Universal datetime | 2025/02/27 10:49 |
| Latitude | 47.26 ° ± 2 km |
| Longitude | -2.02 ° ± 0.8 km |
| Depth | 0 km (operator assigned) ± 0.0 km |
Near cities
This table shows only the most populated cities around the epicenter.
| Name | Distance (km) | Population |
|---|---|---|
Saint-Nazaire 
|
18 | 69993 |
| Couëron
|
22 | 21372 |
| Pornic
|
15 | 15018 |
| Saint-Brevin-les-Pins
|
10 | 13802 |
| Pontchâteau
|
21 | 10684 |
| Pornichet
|
23 | 10669 |
| Savenay
|
13 | 8679 |
| Donges
|
10 | 7961 |
| Trignac
|
16 | 7868 |
| Saint-Étienne-de-Montluc
|
18 | 7129 |
| Montoir-de-Bretagne
|
12 | 7088 |
| Chaumes-en-Retz
|
14 | 6759 |
| Vigneux-de-Bretagne
|
23 | 6030 |
| Saint-Jean-de-Boiseau
|
24 | 5827 |
| Le Pellerin
|
15 | 5100 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.43 |
| Azimuthal gap | 264.7 ° |
| Number of stations used | 4 |
| Number of phases used | 7 |
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 | RIAF | Pg | 10:49:34.13 | -0.22 | 62.01 | 0.54 | Manual |
| FR | RIAF | Sg | 10:49:41.0 | -0.6 | 62.01 | 0.54 | Manual |
| FR | GUEF | Pg | 10:49:37.94 | -0.48 | 326.71 | 0.76 | Manual |
| FR | GUEF | Sg | 10:49:48.82 | 0.17 | 326.71 | 0.76 | Manual |
| FR | MTNF | Pn | 10:49:48.1 | 0 | 37.39 | 1.29 | Manual |
| FR | MTNF | Sg | 10:50:05.74 | 0.05 | 37.39 | 1.29 | Manual |
| FR | LOUF | Pn | 10:49:51.74 | 0.8 | 18.77 | 1.5 | Manual |