This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.4 MLv
Local datetime 2026/04/23 11:32
Universal datetime 2026/04/23 09:32
Latitude 45.66 ° ± 0.1 km
Longitude 4.33 ° ± 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  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  7 5302

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.3
Azimuthal gap 103.14 °
Number of stations used 11
Number of phases used 22

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 OGGL Pg 09:32:26.17 0.11 42.8 0.29 Manual
FR COLF Pg 09:32:29.26 -0.14 250.02 0.47 Manual
FR COLF Sg 09:32:35.52 -0.47 250.02 0.47 Manual
FR PLDF Pg 09:32:31.23 -0.11 301.75 0.58 Manual
XP FR21A Pg 09:32:35.33 0.29 173.4 0.78 Manual
XP FR21A Pn 09:32:36.88 -0.73 173.4 0.78 Manual
XP FR21A Sg 09:32:45.81 -0.04 173.4 0.78 Manual
FR LBL Pg 09:32:36.88 0.01 240.77 0.87 Manual
FR LBL Sg 09:32:49.5 0.02 240.77 0.87 Manual
FR CHLF Pg 09:32:38.66 0.29 339.65 0.96 Manual
FR CHLF Sg 09:32:52.9 0.42 339.65 0.96 Manual
FR OGCB Pg 09:32:38.90 0.1 145.93 0.98 Manual
FR OGCB Sg 09:32:52.41 0 145.93 0.98 Manual
FR BNLF Pg 09:32:39.44 0.41 266.75 0.99 Manual
FR BNLF Sg 09:32:52.77 -0.05 266.75 0.99 Manual
FR CMPS Pg 09:32:39.73 0.43 257.38 1.01 Manual
FR CMPS Sg 09:32:53.30 0.01 257.38 1.01 Manual
XP FR26A Pg 09:32:42.38 0.16 171.19 1.16 Manual
XP FR26A Sg 09:32:58.39 -0.01 171.19 1.16 Manual
FR HRSF Pn 09:32:45.71 -0.61 307.75 1.42 Manual
FR HRSF Pg 09:32:46.78 -0.19 307.75 1.42 Manual
FR HRSF Sn 09:33:05.62 0.01 307.75 1.42 Manual