This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.4 MLv
Local datetime 2022/09/20 12:15
Universal datetime 2022/09/20 10:15
Latitude 47.49 ° ± 4 km
Longitude -1.87 ° ± 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
Pontchâteau  18 10684
Blain  9 9793
Treillières  27 9219
Redon  24 9014
Nort-sur-Erdre  27 8763
Savenay  15 8679
Donges  23 7961
Saint-Étienne-de-Montluc  26 7129
Montoir-de-Bretagne  28 7088
Héric  20 6049
Vigneux-de-Bretagne  23 6030
Grandchamps-des-Fontaines  24 6016
Missillac  23 5342
Plessé  7 5248
Guémené-Penfao  15 5200

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.56
Azimuthal gap 132.31 °
Number of stations used 8
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 10:15:23.52 -0.62 294.94 0.29 Manual
FR BEGF Sg 10:15:28.45 0.54 294.94 0.29 Manual
FR RIAF Pg 10:15:25.67 -0.18 87.77 0.38 Manual
FR RIAF Sg 10:15:31.3 0.14 87.77 0.38 Manual
FR CRNF Pg 10:15:35.77 0.12 112.83 0.91 Manual
FR CRNF Sn 10:15:50.85 -0.82 112.83 0.91 Manual
FR MTNF Pg 10:15:39.5 0.89 41.23 1.04 Manual
FR MTNF Sn 10:15:55.34 0.26 41.23 1.04 Manual
FR DAUF Pg 10:15:38.42 0.23 80.23 1.04 Manual
FR PLEF Pn 10:15:38.64 -0.58 343.06 1.05 Manual
FR PLEF Sn 10:15:54.42 -0.79 343.06 1.05 Manual
FR LGIF Pg 10:15:38.43 -0.53 162.62 1.09 Manual
FR LGIF Sg 10:15:54.28 0.63 162.62 1.09 Manual
RD ROSF Pg 10:15:42.100 0.71 312.37 1.26 Manual