This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.2 MLv
Local datetime 2025/05/26 15:31
Universal datetime 2025/05/26 13:31
Latitude 45.33 ° ± 0.5 km
Longitude 4.09 ° ± 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
Saint-Étienne  25 172565
Firminy  16 17135
Saint-Just-Saint-Rambert  22 15083
Le Chambon-Feugerolles  20 12317
Andrézieux-Bouthéon  27 9790
Roche-la-Molière  21 9697
Monistrol-sur-Loire  8 8718
Unieux  16 8597
Villars  25 7970
La Ricamarie  23 7906
Yssingeaux  22 7202
Sury-le-Comtal  24 6552
Saint-Genest-Lerpt  23 6131
Aurec-sur-Loire  10 6111
Sainte-Sigolène  14 5959

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.21
Azimuthal gap 112.73 °
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
XP FR16A Pg 13:31:33.73 -0.2 235.84 0.1 Manual
XP FR16A Sg 13:31:35.65 0.27 235.84 0.1 Manual
XP FR14B Sg 13:31:37.44 0.44 346.56 0.15 Manual
G SSB Pg 13:31:37.77 -0.2 99.29 0.32 Manual
G SSB Sg 13:31:42.49 0.05 99.29 0.32 Manual
FR COLF Pg 13:31:38.8 0 301.07 0.33 Manual
FR COLF Sg 13:31:43.6 0.43 301.07 0.33 Manual
FR SGSF Pg 13:31:40.19 0.03 229.87 0.44 Manual
FR SGSF Sg 13:31:46.34 0.06 229.87 0.44 Manual
XP FR21A Pg 13:31:41.51 0.07 149.85 0.51 Manual
XP FR21A Sg 13:31:48.81 0.31 149.85 0.51 Manual
FR PLDF Pg 13:31:45.26 0 332.66 0.71 Manual
FR PLDF Sg 13:31:55.30 0.11 332.66 0.71 Manual
RA OCSF Pg 13:31:46.9 -0.14 247.4 0.77 Manual
FR OGCB Pg 13:31:48.8 0.12 123.75 0.86 Manual