This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.8 MLv
Local datetime 2021/09/17 11:17
Universal datetime 2021/09/17 09:17
Latitude 46.91 ° ± 4 km
Longitude -0.36 ° ± 5 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
Cholet  42 53917
Saumur  45 26734
Chemillé-en-Anjou  43 21392
Bressuire  11 19519
Thouars  10 13990
Doué-en-Anjou  31 11005
Parthenay  31 10267
Mauléon  30 8519
Lys-Haut-Layon  27 7880
Loudun  36 6747
Sèvremont  39 6486
Bellevigne-en-Layon  42 5730
Nueil-les-Aubiers  19 5541
Pouzauges  39 5514
Moncoutant-sur-Sèvre  29 5046

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 145.52 °
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 CRNF Pg 09:17:34.34 -0.44 318.05 0.3 Manual
FR CRNF Sg 09:17:38.92 0.22 318.05 0.3 Manual
FR GIZF Pg 09:17:40.38 -0.41 37.08 0.62 Manual
FR DAUF Pg 09:17:43.14 0.02 0.15 0.75 Manual
FR DAUF Pn 09:17:45.56 -0.02 0.15 0.75 Manual
FR CHIF Pg 09:17:43.61 -0.09 182.6 0.78 Manual
FR LGIF Pg 09:17:45.12 0.03 238.21 0.85 Manual
FR LGIF Pn 09:17:47.49 0.47 238.21 0.85 Manual
FR LGIF Sg 09:17:56.49 -0.14 238.21 0.85 Manual
FR TSDF Pg 09:17:48.42 0.55 33.11 1 Manual
FR MTNF Pn 09:17:54.19 -0.24 346.48 1.4 Manual
FR MTNF Sg 09:18:14.26 0.04 346.48 1.4 Manual