This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.8 MLv
Local datetime 2021/08/31 13:09
Universal datetime 2021/08/31 11:09
Latitude 46.52 ° ± 3 km
Longitude -0.38 ° ± 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
Niort  22 58707
Bressuire  38 19519
Thouars  51 13990
Fontenay-le-Comte  33 13226
Parthenay  18 10267
Chauray  19 7006
Saint-Maixent-l'École  18 6982
Sèvremont  50 6486
Melle  38 6213
Vouneuil-sous-Biard  50 5896
La Crèche  18 5635
Nueil-les-Aubiers  49 5541
Pouzauges  45 5514
Aiffres  27 5506
Moncoutant-sur-Sèvre  26 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 82.41 °
Number of stations used 7
Number of phases used 12

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 CHIF Pg 11:09:46.71 0.06 182.77 0.39 Manual
FR CHIF Sg 11:09:52.12 0.32 182.77 0.39 Manual
FR CRNF Pg 11:09:51.10 -0.25 343.26 0.64 Manual
FR CRNF Sg 11:09:59.71 -0.28 343.26 0.64 Manual
FR GNEF Pg 11:09:50.65 -0.76 130.09 0.64 Manual
FR GNEF Sg 11:10:00.35 0.26 130.09 0.64 Manual
FR LGIF Pg 11:09:52.78 0.12 265.18 0.71 Manual
FR BSCF Pg 11:09:56.96 -0.69 72.72 0.98 Manual
FR BSCF Sg 11:10:11.36 0.47 72.72 0.98 Manual
FR DAUF Pg 11:10:00.80 0.18 0.91 1.14 Manual
FR DAUF Sg 11:10:16.56 0.53 0.91 1.14 Manual
FR GARF Pn 11:10:04.16 0.04 89.56 1.36 Manual