This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.8 MLv
Local datetime 2023/10/20 12:37
Universal datetime 2023/10/20 10:37
Latitude 45.67 ° ± 0.4 km
Longitude 4.33 ° ± 0.4 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
Montbrison  21 15641
Saint-Just-Saint-Rambert  20 15083
Andrézieux-Bouthéon  15 9790
Veauche  12 8984
Feurs  11 8173
Villars  22 7970
Sorbiers  20 7933
La Talaudière  22 6860
Saint-Jean-Bonnefonds  25 6638
Sury-le-Comtal  18 6552
Saint-Genest-Lerpt  23 6131
Saint-Priest-en-Jarez  21 6120
Saint-Galmier  7 5722
Chazelles-sur-Lyon  5 5357
Montrond-les-Bains  8 5302

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.31
Azimuthal gap 73.19 °
Number of stations used 9
Number of phases used 15

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 COLF Pg 10:37:37.42 -0.36 249.9 0.48 Manual
FR COLF Sg 10:37:44.5 -0.35 249.9 0.48 Manual
FR OGRV Pg 10:37:42.38 -0.35 23.28 0.74 Manual
FR SGSF Pg 10:37:43.58 -0.14 219.28 0.8 Manual
FR SGSF Sg 10:37:54.92 0.14 219.28 0.8 Manual
FR LBL Pg 10:37:45.49 0.25 240.74 0.88 Manual
FR LBL Sg 10:37:57.7 -0.38 240.74 0.88 Manual
FR CHLF Pg 10:37:46.90 0.22 339.5 0.95 Manual
FR CHLF Sg 10:38:00.35 0.39 339.5 0.95 Manual
FR OGCB Pg 10:37:47.39 0.25 146.09 0.98 Manual
FR OGCB Sg 10:38:01.14 0.39 146.09 0.98 Manual
FR VERF Pn 10:37:52.96 -0.03 274.4 1.3 Manual
FR HRSF Pg 10:37:55.46 0.15 307.65 1.42 Manual
FR HRSF Sn 10:38:14.31 0.35 307.65 1.42 Manual
CH DIX Sg 10:38:38.81 -0.54 77.98 2.19 Manual