This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.5 MLv |
| Local datetime | 2021/12/07 10:23 |
| Universal datetime | 2021/12/07 09:23 |
| Latitude | 45.38 ° ± 2 km |
| Longitude | 3.70 ° ± 2 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 |
|---|---|---|
Le Puy-en-Velay 
|
42 | 18995 |
| Firminy
|
46 | 17135 |
| Montbrison
|
38 | 15641 |
| Saint-Just-Saint-Rambert
|
45 | 15083 |
| Issoire
|
40 | 14822 |
| Andrézieux-Bouthéon
|
49 | 9790 |
| Monistrol-sur-Loire
|
39 | 8718 |
| Unieux
|
45 | 8597 |
| Yssingeaux
|
43 | 7202 |
| Brioude
|
26 | 6721 |
| Ambert
|
20 | 6671 |
| Sury-le-Comtal
|
42 | 6552 |
| Aurec-sur-Loire
|
40 | 6111 |
| Sainte-Sigolène
|
44 | 5959 |
| Vic-le-Comte
|
46 | 5197 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.32 |
| Azimuthal gap | 94.41 ° |
| Number of stations used | 14 |
| Number of phases used | 27 |
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 | COLF | Pg | 09:23:16.71 | -0.28 | 359.13 | 0.12 | Manual |
| FR | COLF | Sg | 09:23:18.96 | 0.3 | 359.13 | 0.12 | Manual |
| FR | SGSF | Pg | 09:23:20.82 | -0.23 | 189.39 | 0.34 | Manual |
| FR | SGSF | Sg | 09:23:25.76 | 0.02 | 189.39 | 0.34 | Manual |
| FR | LBL | Pg | 09:23:21.35 | 0.07 | 245.03 | 0.35 | Manual |
| FR | LBL | Sg | 09:23:26.32 | 0.17 | 245.03 | 0.35 | Manual |
| FR | CMPS | Pg | 09:23:24.90 | 0.08 | 276.03 | 0.54 | Manual |
| FR | CMPS | Sg | 09:23:32.23 | -0.12 | 276.03 | 0.54 | Manual |
| FR | PLDF | Pg | 09:23:25.43 | -0.24 | 354.97 | 0.59 | Manual |
| G | SSB | Pg | 09:23:25.79 | -0.23 | 99.38 | 0.61 | Manual |
| FR | AGO | Pg | 09:23:29.29 | 0.07 | 329.61 | 0.78 | Manual |
| FR | AGO | Sg | 09:23:40.36 | 0.33 | 329.61 | 0.78 | Manual |
| FR | FRNF | Pg | 09:23:29.37 | -0.24 | 270.71 | 0.8 | Manual |
| FR | FRNF | Sg | 09:23:40.92 | 0.2 | 270.71 | 0.8 | Manual |
| FR | VERF | Pg | 09:23:32.28 | 0.26 | 293.8 | 0.93 | Manual |
| FR | VERF | Sg | 09:23:45.17 | 0.23 | 293.8 | 0.93 | Manual |
| FR | LEUC | Pg | 09:23:33.81 | 0.09 | 232.94 | 1.02 | Manual |
| FR | LEUC | Sg | 09:23:47.69 | -0.21 | 232.94 | 1.02 | Manual |
| FR | BANN | Pg | 09:23:34.67 | 0.14 | 161.92 | 1.06 | Manual |
| FR | BANN | Sg | 09:23:49.2 | -0.3 | 161.92 | 1.06 | Manual |
| FR | OGCB | Pg | 09:23:36.50 | 0.84 | 117.65 | 1.12 | Manual |
| FR | OGCB | Sg | 09:23:51.22 | -0.09 | 117.65 | 1.12 | Manual |
| FR | CHLF | Pg | 09:23:37.14 | 0.41 | 4.96 | 1.18 | Manual |
| FR | CHLF | Sg | 09:23:52.97 | -0.21 | 4.96 | 1.18 | Manual |
| FR | HRSF | Pn | 09:23:38.64 | -0.7 | 329 | 1.33 | Manual |
| FR | HRSF | Pg | 09:23:39.89 | 0.33 | 329 | 1.33 | Manual |
| FR | HRSF | Sg | 09:23:57.46 | -0.66 | 329 | 1.33 | Manual |