This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.8 MLv
Local datetime 2021/12/10 11:59
Universal datetime 2021/12/10 10:59
Latitude 46.54 ° ± 3 km
Longitude -0.33 ° ± 3 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
Niort  26 58707
Bressuire  36 19519
Thouars  48 13990
Fontenay-le-Comte  37 13226
Parthenay  14 10267
Chauray  22 7006
Saint-Maixent-l'École  17 6982
Melle  39 6213
Vouneuil-sous-Biard  46 5896
La Crèche  20 5635
Nueil-les-Aubiers  48 5541
Pouzauges  46 5514
Aiffres  30 5506
Neuville-de-Poitou  48 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 0.45
Azimuthal gap 76.56 °
Number of stations used 7
Number of phases used 14

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
RD MFF Pg 10:59:30.71 -0.41 65.91 0.14 Manual
RD MFF Sg 10:59:33.29 0.35 65.91 0.14 Manual
FR CHIF Pg 10:59:35.96 -0.37 187.1 0.41 Manual
FR CHIF Sg 10:59:41.14 -0.7 187.1 0.41 Manual
FR CRNF Pg 10:59:39.97 -0.35 339.87 0.63 Manual
FR CRNF Sg 10:59:48.50 -0.31 339.87 0.63 Manual
FR GNEF Pg 10:59:40.23 -0.22 133.59 0.64 Manual
FR GNEF Sg 10:59:49.83 0.82 133.59 0.64 Manual
FR LGIF Pg 10:59:42.48 -0.03 263.65 0.75 Manual
FR LGIF Sg 10:59:53.43 0.84 263.65 0.75 Manual
FR DAUF Pg 10:59:49.72 0.33 359.31 1.12 Manual
FR DAUF Sg 11:00:04.30 -0.19 359.31 1.12 Manual
FR RIAF Pg 10:59:50.78 0.33 325.47 1.17 Manual
FR RIAF Sg 11:00:06.24 -0.08 325.47 1.17 Manual