This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.5 MLv |
| Local datetime | 2026/03/11 12:03 |
| Universal datetime | 2026/03/11 11:03 |
| Latitude | 45.32 ° ± 0.1 km |
| Longitude | 4.58 ° ± 0.0 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-Étienne 
|
20 | 172565 |
| Saint-Chamond
|
18 | 34967 |
| Annonay
|
10 | 16345 |
| Rive-de-Gier
|
23 | 15184 |
| Le Chambon-Feugerolles
|
21 | 12317 |
| Roche-la-Molière
|
23 | 9697 |
| Roussillon
|
20 | 8455 |
| Sorbiers
|
23 | 7933 |
| La Ricamarie
|
19 | 7906 |
| La Talaudière
|
21 | 6860 |
| Le Péage-de-Roussillon
|
17 | 6680 |
| Saint-Jean-Bonnefonds
|
18 | 6638 |
| Saint-Rambert-d'Albon
|
20 | 6530 |
| Saint-Maurice-l'Exil
|
18 | 6141 |
| La Grand-Croix
|
20 | 5136 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.46 |
| Azimuthal gap | 55.69 ° |
| Number of stations used | 23 |
| Number of phases used | 38 |
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 |
|---|---|---|---|---|---|---|---|
| G | SSB | Pg | 11:03:49.87 | -0.74 | 209.31 | 0.05 | Manual |
| FR | OGCN | Pg | 11:03:57.5 | -0.33 | 114.56 | 0.4 | Manual |
| FR | OGCN | Sg | 11:04:02.68 | 0 | 114.56 | 0.4 | Manual |
| XP | FR14B | Pg | 11:03:57.3 | -0.53 | 293.29 | 0.41 | Manual |
| XP | FR14B | Sg | 11:04:03.33 | 0.34 | 293.29 | 0.41 | Manual |
| XP | FR16A | Pg | 11:03:57.89 | -0.05 | 263.81 | 0.43 | Manual |
| XP | FR21A | Pg | 11:03:57.39 | -0.7 | 191.6 | 0.44 | Manual |
| XP | FR21A | Sg | 11:04:04.59 | 0.65 | 191.6 | 0.44 | Manual |
| FR | OGGL | Pg | 11:03:59.82 | -0.51 | 2.58 | 0.56 | Manual |
| FR | OGCB | Pg | 11:04:00.45 | -0.64 | 141.72 | 0.6 | Manual |
| FR | COLF | Pg | 11:04:01.74 | -0.23 | 286.39 | 0.65 | Manual |
| FR | COLF | Sg | 11:04:11.28 | 0.59 | 286.39 | 0.65 | Manual |
| FR | SGSF | Pg | 11:04:02.96 | -0.57 | 248.33 | 0.73 | Manual |
| FR | OGDF | Pg | 11:04:05.79 | 0.2 | 155.18 | 0.84 | Manual |
| XP | FR22A | Pg | 11:04:06.80 | 0.67 | 219.41 | 0.87 | Manual |
| XP | FR22A | Sg | 11:04:18.10 | 0.21 | 219.41 | 0.87 | Manual |
| FR | OGS3 | Pg | 11:04:07.29 | 0.48 | 105.69 | 0.91 | Manual |
| FR | PLDF | Pg | 11:04:07.19 | -0.02 | 314.27 | 0.93 | Manual |
| FR | PLDF | Sg | 11:04:19.80 | 0.04 | 314.27 | 0.93 | Manual |
| FR | LBL | Pg | 11:04:07.73 | 0.23 | 265.01 | 0.94 | Manual |
| FR | LBL | Sg | 11:04:20.82 | 0.57 | 265.01 | 0.94 | Manual |
| FR | BANN | Pg | 11:04:08.76 | 0.25 | 197.54 | 1 | Manual |
| FR | BANN | Sg | 11:04:22.59 | 0.58 | 197.54 | 1 | Manual |
| FR | PRABE | Pg | 11:04:09.13 | 0.49 | 94.46 | 1 | Manual |
| FR | PRABE | Sg | 11:04:22.89 | 0.66 | 94.46 | 1 | Manual |
| FR | OGMY | Pg | 11:04:09.37 | -0.65 | 58.27 | 1.08 | Manual |
| FR | OGMY | Sg | 11:04:24.83 | 0.21 | 58.27 | 1.08 | Manual |
| FR | OGCC | Pg | 11:04:11.4 | 0.07 | 141.82 | 1.13 | Manual |
| FR | OGVG | Pg | 11:04:12.48 | 0.19 | 114.37 | 1.2 | Manual |
| FR | OGVG | Sg | 11:04:29.23 | 0.68 | 114.37 | 1.2 | Manual |
| FR | TRBF | Pn | 11:04:13.87 | 0.15 | 200.11 | 1.29 | Manual |
| FR | TRBF | Sg | 11:04:31.41 | -0.1 | 200.11 | 1.29 | Manual |
| FR | FRNF | Pn | 11:04:16.8 | 0.61 | 273.3 | 1.42 | Manual |
| FR | FRNF | Sg | 11:04:35.11 | -0.55 | 273.3 | 1.42 | Manual |
| FR | VERF | Sn | 11:04:38.68 | 0.13 | 287 | 1.53 | Manual |
| FR | HRSF | Pn | 11:04:20.87 | 0.61 | 313.19 | 1.78 | Manual |
| FR | HRSF | Pg | 11:04:22.89 | 0.28 | 313.19 | 1.78 | Manual |
| FR | HRSF | Sn | 11:04:45.29 | 0.63 | 313.19 | 1.78 | Manual |