This event was reviewed by an analyst and confirmed.
| Type | Quarry blast |
| Magnitude | 1.7 MLv |
| Local datetime | 2021/10/22 11:40 |
| Universal datetime | 2021/10/22 09:40 |
| Latitude | 46.75 ° ± 4 km |
| Longitude | -0.38 ° ± 4 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 
|
48 | 58707 |
| Bressuire
|
14 | 19519 |
| Thouars
|
26 | 13990 |
| Fontenay-le-Comte
|
46 | 13226 |
| Parthenay
|
16 | 10267 |
| Mauléon
|
36 | 8519 |
| Lys-Haut-Layon
|
43 | 7880 |
| Chauray
|
45 | 7006 |
| Saint-Maixent-l'École
|
40 | 6982 |
| Loudun
|
46 | 6747 |
| Sèvremont
|
38 | 6486 |
| La Crèche
|
43 | 5635 |
| Nueil-les-Aubiers
|
27 | 5541 |
| Pouzauges
|
35 | 5514 |
| Moncoutant-sur-Sèvre
|
17 | 5046 |
Past seismicity
This map shows only the 50 most significant earthquakes around this event.
Event details
Parameters
| Evaluation status | preliminary |
|---|---|
| RMS | 0.4 |
| Azimuthal gap | 98.3 ° |
| Number of stations used | 7 |
| Number of phases used | 10 |
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 |
|---|---|---|---|---|---|---|---|
| RD | MFF | Pg | 09:40:47.64 | -0.13 | 133.69 | 0.22 | Manual |
| RD | MFF | Sg | 09:40:50.92 | 0.33 | 133.69 | 0.22 | Manual |
| FR | CRNF | Pg | 09:40:51.48 | -0.18 | 333.86 | 0.43 | Manual |
| FR | CRNF | Sg | 09:40:57.4 | -0.28 | 333.86 | 0.43 | Manual |
| FR | CHIF | Pg | 09:40:55.38 | 0.09 | 181.99 | 0.62 | Manual |
| FR | LGIF | Pg | 09:40:57.65 | -0.42 | 247.73 | 0.77 | Manual |
| FR | DAUF | Pg | 09:41:01.4 | 0.42 | 0.97 | 0.91 | Manual |
| FR | RIAF | Pg | 09:41:02.54 | 0.39 | 319.98 | 0.99 | Manual |
| FR | GARF | Pg | 09:41:09.87 | 0.53 | 99.26 | 1.38 | Manual |
| FR | GARF | Sg | 09:41:27.23 | -0.75 | 99.26 | 1.38 | Manual |