This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.2 MLv |
| Local datetime | 2023/09/28 13:20 |
| Universal datetime | 2023/09/28 11:20 |
| Latitude | 45.63 ° ± 0.6 km |
| Longitude | 4.31 ° ± 0.5 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 |
|---|---|---|
Montbrison 
|
19 | 15641 |
| Saint-Just-Saint-Rambert
|
16 | 15083 |
| Andrézieux-Bouthéon
|
11 | 9790 |
| Veauche
|
8 | 8984 |
| Feurs
|
13 | 8173 |
| Villars
|
18 | 7970 |
| Sorbiers
|
18 | 7933 |
| La Talaudière
|
19 | 6860 |
| Saint-Jean-Bonnefonds
|
22 | 6638 |
| Sury-le-Comtal
|
14 | 6552 |
| Saint-Genest-Lerpt
|
20 | 6131 |
| Saint-Priest-en-Jarez
|
18 | 6120 |
| Saint-Galmier
|
3 | 5722 |
| Chazelles-sur-Lyon
|
5 | 5357 |
| Montrond-les-Bains
|
5 | 5302 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.31 |
| Azimuthal gap | 131.75 ° |
| Number of stations used | 6 |
| Number of phases used | 9 |
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 | 11:21:01.88 | -0.35 | 154.98 | 0.39 | Manual |
| G | SSB | Sg | 11:21:08.4 | 0.4 | 154.98 | 0.39 | Manual |
| FR | COLF | Pg | 11:21:03.7 | -0.32 | 253.26 | 0.45 | Manual |
| FR | COLF | Sg | 11:21:09.82 | 0.15 | 253.26 | 0.45 | Manual |
| FR | PLDF | Pg | 11:21:05.67 | -0.19 | 305 | 0.58 | Manual |
| FR | SGSF | Pg | 11:21:09.43 | 0.3 | 220.05 | 0.76 | Manual |
| FR | OGRV | Pg | 11:21:09.61 | 0.15 | 23.24 | 0.78 | Manual |
| FR | CMPS | Pg | 11:21:13.72 | 0.37 | 259.01 | 0.99 | Manual |
| FR | CMPS | Sg | 11:21:26.70 | -0.39 | 259.01 | 0.99 | Manual |