This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.9 MLv
Local datetime 2021/12/13 11:17
Universal datetime 2021/12/13 10:17
Latitude 47.50 ° ± 3 km
Longitude -2.29 ° ± 3 km
Depth 0 km (from location) ± 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  24 69993
La Baule-Escoublac  23 16132
Guérande  21 15873
Saint-Brevin-les-Pins  30 13802
Pontchâteau  16 10684
Pornichet  26 10669
Redon  24 9014
Donges  24 7961
Trignac  21 7868
Questembert  22 7585
Montoir-de-Bretagne  22 7088
Herbignac  6 6822
Saint-André-des-Eaux  19 6473
Missillac  9 5342
Muzillac  15 5015

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.18
Azimuthal gap 139.04 °
Number of stations used 8
Number of phases used 16

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 10:17:41.51 -0.38 9.3 0.12 Manual
FR BEGF Sg 10:17:43.28 -0.15 9.3 0.12 Manual
FR PLOF Pg 10:17:54.57 -0.3 288.45 0.81 Manual
FR PLOF Sg 10:18:05.71 -0.1 288.45 0.81 Manual
FR PLEF Pg 10:17:58.53 0.14 358.37 1 Manual
FR PLEF Sg 10:18:12.21 0.31 358.37 1 Manual
FR LGIF Pg 10:18:02.16 -0.01 149.42 1.2 Manual
FR LGIF Sg 10:18:18.47 0.02 149.42 1.2 Manual
FR MTNF Pg 10:18:03.2 0.07 50.84 1.24 Manual
FR MTNF Sg 10:18:19.72 -0.08 50.84 1.24 Manual
FR DAUF Pg 10:18:04.58 0.19 82.13 1.32 Manual
FR DAUF Sg 10:18:22.23 -0.07 82.13 1.32 Manual
FR OLIV Pg 10:18:04.64 0.25 289.54 1.32 Manual
FR OLIV Sg 10:18:22.32 0.01 289.54 1.32 Manual
FR LOCF Pg 10:18:07.78 0.01 322.45 1.5 Manual
FR LOCF Sn 10:18:27.78 0.1 322.45 1.5 Manual