This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.5 MLv
Local datetime 2021/12/15 11:27
Universal datetime 2021/12/15 10:27
Latitude 46.64 ° ± 4 km
Longitude -1.81 ° ± 4 km
Depth 0 km (operator assigned) ± 0.0 km
See the seismogram of this event.

Near cities

This table shows only the most populated cities around the epicenter.
Name Distance (km) Population
La Roche-sur-Yon  31 54372
Les Sables-d'Olonne  13 44017
Challans  22 20622
Saint-Hilaire-de-Riez  17 11169
Aizenay  18 9510
Essarts en Bocage  49 8931
Saint-Jean-de-Monts  26 8634
Le Poiré-sur-Vie  28 8509
Talmont-Saint-Hilaire  23 7657
Saint-Gilles-Croix-de-Vie  10 7655
Machecoul-Saint-Même  40 7473
Aubigny-Les Clouzeaux  25 6571
Bellevigny  35 6005
La Ferrière  38 5255
Les Achards  12 5063

Past seismicity

  This map shows only the 50 most significant earthquakes around this event.

Event details

Parameters

Evaluation status preliminary
RMS 0.29
Azimuthal gap 183.75 °
Number of stations used 9
Number of phases used 15

Webservices

The data of this event are available in various formats (QuakeML, GeoJSON and text) through the following links :

QuakeML GeoJSON Text

Phases

Network Station Phase Time Residual (s) Azimuth (°) Distance (°) Mode
FR LGIF Pg 10:27:53.77 -0.32 122.66 0.33 Manual
FR LGIF Sg 10:27:58.31 -0.12 122.66 0.33 Manual
FR BOUF Pg 10:27:57.82 -0.09 12.52 0.54 Manual
FR RIAF Pg 10:28:04.96 -0.34 21.07 0.93 Manual
FR RIAF Pn 10:28:06.36 -0.47 21.07 0.93 Manual
FR CRNF Pg 10:28:05.51 0.12 57.48 0.94 Manual
FR CRNF Pn 10:28:07.4 0.15 57.48 0.94 Manual
FR CRNF Sg 10:28:18.56 0.49 57.48 0.94 Manual
FR BEGF Pg 10:28:07.33 0.32 342.61 1.03 Manual
FR CHIF Pg 10:28:08.52 0.25 116.89 1.09 Manual
RD MFF Pg 10:28:09.31 0.05 91.12 1.15 Manual
FR BIMF Pg 10:28:10.8 0.25 306.41 1.18 Manual
FR BIMF Sg 10:28:25.65 -0.12 306.41 1.18 Manual
FR DAUF Pg 10:28:14.76 0.28 43.61 1.43 Manual
FR DAUF Sg 10:28:33.37 -0.44 43.61 1.43 Manual