This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.7 MLv |
| Local datetime | 2021/12/21 15:11 |
| Universal datetime | 2021/12/21 14:11 |
| Latitude | 46.54 ° ± 3 km |
| Longitude | -0.35 ° ± 9 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 |
|---|---|---|
Niort 
|
25 | 58707 |
| Bressuire
|
37 | 19519 |
| Thouars
|
49 | 13990 |
| Fontenay-le-Comte
|
35 | 13226 |
| Parthenay
|
15 | 10267 |
| Chauray
|
21 | 7006 |
| Saint-Maixent-l'École
|
17 | 6982 |
| Melle
|
39 | 6213 |
| Vouneuil-sous-Biard
|
48 | 5896 |
| La Crèche
|
19 | 5635 |
| Nueil-les-Aubiers
|
49 | 5541 |
| Pouzauges
|
46 | 5514 |
| Aiffres
|
29 | 5506 |
| Neuville-de-Poitou
|
49 | 5324 |
| Moncoutant-sur-Sèvre
|
27 | 5046 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.19 |
| Azimuthal gap | 185.78 ° |
| Number of stations used | 5 |
| 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 |
|---|---|---|---|---|---|---|---|
| FR | CHIF | Pg | 14:11:14.61 | -0.15 | 185.65 | 0.4 | Manual |
| FR | CHIF | Sg | 14:11:20.18 | 0.05 | 185.65 | 0.4 | Manual |
| FR | CRNF | Pg | 14:11:18.70 | -0.33 | 341.1 | 0.63 | Manual |
| FR | CRNF | Sg | 14:11:27.42 | -0.15 | 341.1 | 0.63 | Manual |
| FR | LGIF | Pg | 14:11:20.91 | 0.02 | 264.24 | 0.73 | Manual |
| FR | DAUF | Pg | 14:11:28.37 | 0.2 | 359.88 | 1.13 | Manual |
| FR | DAUF | Sg | 14:11:43.41 | 0.02 | 359.88 | 1.13 | Manual |
| FR | RIAF | Pg | 14:11:29.42 | 0.34 | 326.16 | 1.17 | Manual |
| FR | RIAF | Sg | 14:11:44.96 | -0.01 | 326.16 | 1.17 | Manual |