This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.7 MLv
Local datetime 2021/09/22 11:37
Universal datetime 2021/09/22 09:37
Latitude 46.53 ° ± 4 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  25 58707
Bressuire  38 19519
Thouars  50 13990
Fontenay-le-Comte  37 13226
Parthenay  15 10267
Chauray  20 7006
Saint-Maixent-l'École  16 6982
Melle  37 6213
Migné-Auxances  50 6071
Vouneuil-sous-Biard  46 5896
La Crèche  18 5635
Pouzauges  48 5514
Aiffres  28 5506
Neuville-de-Poitou  48 5324
Moncoutant-sur-Sèvre  28 5046

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.34
Azimuthal gap 98.03 °
Number of stations used 6
Number of phases used 11

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 09:37:25.36 0.03 187.9 0.4 Manual
FR CRNF Pg 09:37:29.48 -0.46 340.09 0.65 Manual
FR CRNF Sg 09:37:38.6 -0.59 340.09 0.65 Manual
FR LGIF Pg 09:37:31.94 0.11 264.95 0.75 Manual
FR LGIF Pn 09:37:34.33 0.03 264.95 0.75 Manual
FR LGIF Sg 09:37:41.87 -0.06 264.95 0.75 Manual
FR DAUF Pg 09:37:39.28 0.29 359.14 1.13 Manual
FR DAUF Sg 09:37:54.89 0.57 359.14 1.13 Manual
FR RIAF Pg 09:37:40.21 0.17 325.79 1.19 Manual
FR GARF Pg 09:37:42.86 0.29 89.86 1.32 Manual
FR GARF Sg 09:38:00.13 -0.38 89.86 1.32 Manual