This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.6 MLv |
| Local datetime | 2026/05/12 09:50 |
| Universal datetime | 2026/05/12 07:50 |
| Latitude | 45.53 ° ± 0.1 km |
| Longitude | 4.07 ° ± 0.1 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 |
|---|---|---|
Firminy 
|
24 | 17135 |
| Montbrison
|
7 | 15641 |
| Saint-Just-Saint-Rambert
|
15 | 15083 |
| Andrézieux-Bouthéon
|
16 | 9790 |
| Roche-la-Molière
|
23 | 9697 |
| Veauche
|
17 | 8984 |
| Unieux
|
21 | 8597 |
| Villars
|
23 | 7970 |
| Ambert
|
25 | 6671 |
| Sury-le-Comtal
|
9 | 6552 |
| Saint-Genest-Lerpt
|
22 | 6131 |
| Saint-Priest-en-Jarez
|
25 | 6120 |
| Aurec-sur-Loire
|
21 | 6111 |
| Saint-Galmier
|
21 | 5722 |
| Montrond-les-Bains
|
18 | 5302 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.22 |
| Azimuthal gap | 102.74 ° |
| Number of stations used | 15 |
| Number of phases used | 26 |
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 |
|---|---|---|---|---|---|---|---|
| XP | FR14B | Pg | 07:50:27.39 | -0.33 | 200.44 | 0.06 | Manual |
| XP | FR14B | Sg | 07:50:28.53 | 0.05 | 200.44 | 0.06 | Manual |
| FR | COLF | Pg | 07:50:31.61 | -0.02 | 262.9 | 0.27 | Manual |
| XP | FR16A | Pg | 07:50:31.47 | -0.23 | 195.01 | 0.27 | Manual |
| XP | FR16A | Sg | 07:50:35.41 | -0.03 | 195.01 | 0.27 | Manual |
| FR | PLDF | Pg | 07:50:36.28 | -0.3 | 324.22 | 0.53 | Manual |
| FR | SGSF | Pg | 07:50:37.42 | -0.06 | 213.37 | 0.58 | Manual |
| FR | SGSF | Sg | 07:50:45.49 | -0.07 | 213.37 | 0.58 | Manual |
| FR | LBL | Pg | 07:50:38.89 | 0.04 | 242.78 | 0.65 | Manual |
| FR | LBL | Sg | 07:50:47.88 | -0.06 | 242.78 | 0.65 | Manual |
| XP | FR21A | Pg | 07:50:39.29 | -0.33 | 157.03 | 0.7 | Manual |
| XP | FR21A | Sg | 07:50:49.33 | 0.02 | 157.03 | 0.7 | Manual |
| FR | BNLF | Pg | 07:50:41.90 | 0.12 | 275.01 | 0.81 | Manual |
| FR | BNLF | Sg | 07:50:53.5 | -0.03 | 275.01 | 0.81 | Manual |
| FR | OGRV | Pg | 07:50:44.25 | 0.06 | 30.15 | 0.94 | Manual |
| FR | OGCB | Pg | 07:50:45.29 | 0.07 | 132.89 | 1 | Manual |
| FR | CZNF | Pg | 07:50:45.57 | 0.2 | 237.65 | 1.01 | Manual |
| FR | CZNF | Sg | 07:50:59.10 | -0.26 | 237.65 | 1.01 | Manual |
| FR | CHLF | Pg | 07:50:46.5 | 0.1 | 351.39 | 1.04 | Manual |
| FR | CHLF | Sg | 07:51:00.14 | -0.23 | 351.39 | 1.04 | Manual |
| XP | FR26A | Pg | 07:50:47.11 | 0.35 | 160.45 | 1.08 | Manual |
| XP | FR26A | Sg | 07:51:01.28 | -0.53 | 160.45 | 1.08 | Manual |
| FR | VERF | Pg | 07:50:47.78 | 0.04 | 281.57 | 1.13 | Manual |
| FR | VERF | Sg | 07:51:03.13 | -0.38 | 281.57 | 1.13 | Manual |
| FR | LEUC | Pg | 07:50:51.50 | 0.25 | 234.75 | 1.32 | Manual |
| FR | LEUC | Sg | 07:51:09.36 | -0.27 | 234.75 | 1.32 | Manual |