This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.4 MLv
Local datetime 2025/07/31 10:14
Universal datetime 2025/07/31 08:14
Latitude 45.37 ° ± 0.2 km
Longitude 4.32 ° ± 0.1 km
Depth 0 km (from location) ± 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  8 172565
Firminy  3 17135
Saint-Just-Saint-Rambert  15 15083
Le Chambon-Feugerolles  3 12317
Roche-la-Molière  7 9697
Monistrol-sur-Loire  14 8718
Unieux  6 8597
Villars  12 7970
La Ricamarie  6 7906
La Talaudière  15 6860
Saint-Jean-Bonnefonds  14 6638
Saint-Genest-Lerpt  10 6131
Saint-Priest-en-Jarez  13 6120
Aurec-sur-Loire  9 6111
Sainte-Sigolène  15 5959

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 158.39 °
Number of stations used 10
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
G SSB Pg 08:14:53.50 -0.2 119.35 0.18 Manual
G SSB Sg 08:14:56.19 -0.02 119.35 0.18 Manual
XP FR14B Pg 08:14:54.60 0.04 300.32 0.23 Manual
XP FR14B Sg 08:14:57.87 0.16 300.32 0.23 Manual
XP FR16A Pg 08:14:55.2 -0.24 249.17 0.26 Manual
XP FR16A Sg 08:14:58.84 -0.09 249.17 0.26 Manual
FR COLF Pg 08:14:58.89 -0.02 286.97 0.46 Manual
FR COLF Sg 08:15:05.6 -0.24 286.97 0.46 Manual
FR SGSF Pg 08:15:01.13 -0.19 237.4 0.59 Manual
FR OGCB Pg 08:15:05.13 0.74 132.96 0.76 Manual
FR LBL Sg 08:15:15.26 -0.12 260.19 0.77 Manual
FR PLDF Pg 08:15:05.7 0.37 320.96 0.77 Manual
FR PLDF Sg 08:15:15.52 0.08 320.96 0.77 Manual
XP FR26A Sg 08:15:19.25 0.54 167.92 0.87 Manual
FR LEUC Pg 08:15:16.52 0.32 244.75 1.39 Automatic