This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.3 MLv
Local datetime 2026/05/21 10:47
Universal datetime 2026/05/21 08:47
Latitude 45.65 ° ± 0.1 km
Longitude 4.32 ° ± 0.1 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  20 15641
Saint-Just-Saint-Rambert  18 15083
Andrézieux-Bouthéon  13 9790
Veauche  10 8984
Feurs  12 8173
Villars  20 7970
Sorbiers  19 7933
La Talaudière  21 6860
Saint-Jean-Bonnefonds  24 6638
Sury-le-Comtal  16 6552
Saint-Genest-Lerpt  22 6131
Saint-Priest-en-Jarez  20 6120
Saint-Galmier  5 5722
Chazelles-sur-Lyon  5 5357
Montrond-les-Bains  6 5302

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.39
Azimuthal gap 149.26 °
Number of stations used 9
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 COLF Pg 08:47:45.55 0.15 251.38 0.46 Manual
FR COLF Sg 08:47:52.17 0.35 251.38 0.46 Manual
FR PLDF Pg 08:47:47.53 -0.05 303.36 0.58 Manual
FR OGRV Pg 08:47:51.17 0.2 23.44 0.76 Manual
FR OGRV Sg 08:48:02.22 0.67 23.44 0.76 Manual
XP FR21A Pg 08:47:50.91 -0.11 172.71 0.76 Manual
XP FR21A Sg 08:48:02.19 0.56 172.71 0.76 Manual
FR SGSF Pg 08:47:51.19 -0.07 219.49 0.78 Manual
FR SGSF Sg 08:48:02.31 0.23 219.49 0.78 Manual
FR CHLF Pg 08:47:54.89 0.09 340.36 0.97 Manual
FR CHLF Sg 08:48:08.40 0.16 340.36 0.97 Manual
FR CMPS Pg 08:47:55.75 0.42 258.09 1 Manual
FR CMPS Sg 08:48:09.26 0.08 258.09 1 Manual
FR VERF Pn 08:47:59.87 -0.9 275.15 1.29 Manual
FR VERF Pg 08:48:01.19 0.43 275.15 1.29 Manual
FR HRSF Pn 08:48:02.10 -0.48 308.39 1.42 Manual