This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.9 MLv
Local datetime 2021/12/13 11:05
Universal datetime 2021/12/13 10:05
Latitude 47.51 ° ± 3 km
Longitude -2.26 ° ± 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
Saint-Nazaire  26 69993
La Baule-Escoublac  26 16132
Guérande  23 15873
Pontchâteau  16 10684
Pornichet  28 10669
Redon  21 9014
Donges  25 7961
Trignac  23 7868
Questembert  21 7585
Montoir-de-Bretagne  23 7088
Herbignac  8 6822
Saint-André-des-Eaux  22 6473
Missillac  7 5342
Plessé  29 5248
Muzillac  16 5015

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.26
Azimuthal gap 137.92 °
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
FR BEGF Pg 10:05:48.39 -0.27 0.85 0.1 Manual
FR BEGF Sg 10:05:50.4 0.09 0.85 0.1 Manual
FR PLEF Pg 10:06:05.21 -0.02 357.31 0.98 Manual
FR PLEF Sg 10:06:18.81 0.31 357.31 0.98 Manual
FR CRNF Pg 10:06:08.21 -0.38 108.48 1.16 Manual
FR CRNF Sg 10:06:24.28 -0.03 108.48 1.16 Manual
FR LGIF Pg 10:06:09.11 -0.37 150.62 1.21 Manual
FR LGIF Sg 10:06:26.35 0.49 150.62 1.21 Manual
FR MTNF Pg 10:06:09.87 0.22 51.01 1.22 Manual
FR MTNF Sg 10:06:25.85 -0.29 51.01 1.22 Manual
FR DAUF Pg 10:06:11.26 0.07 82.86 1.3 Manual
FR DAUF Sg 10:06:29.6 0.23 82.86 1.3 Manual
FR OLIV Pg 10:06:11.64 -0.14 288.54 1.33 Manual
FR OLIV Sg 10:06:29.93 0.1 288.54 1.33 Manual