This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 0.9 MLv
Local datetime 2025/05/23 10:59
Universal datetime 2025/05/23 08:59
Latitude 45.18 ° ± 0.5 km
Longitude 4.14 ° ± 0.5 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  33 172565
Le Puy-en-Velay  26 18995
Firminy  25 17135
Saint-Just-Saint-Rambert  35 15083
Le Chambon-Feugerolles  27 12317
Roche-la-Molière  31 9697
Monistrol-sur-Loire  12 8718
Unieux  27 8597
Villars  36 7970
La Ricamarie  30 7906
Yssingeaux  5 7202
Saint-Genest-Lerpt  34 6131
Saint-Priest-en-Jarez  37 6120
Aurec-sur-Loire  21 6111
Sainte-Sigolène  10 5959

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.35
Azimuthal gap 107.1 °
Number of stations used 7
Number of phases used 14

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 08:59:02.65 -0.21 306.45 0.15 Manual
XP FR16A Sg 08:59:05.53 0.57 306.45 0.15 Manual
G SSB Pg 08:59:05.49 -0.09 71.15 0.3 Manual
G SSB Sg 08:59:10.13 0.41 71.15 0.3 Manual
XP FR14B Pg 08:59:05.62 -0.12 346.59 0.31 Manual
XP FR14B Sg 08:59:10.29 0.29 346.59 0.31 Manual
XP FR21A Pg 08:59:06.82 0 142.98 0.36 Manual
XP FR21A Sg 08:59:12.50 0.61 142.98 0.36 Manual
FR SGSF Pg 08:59:07.27 -0.12 250.07 0.4 Manual
FR SGSF Sg 08:59:13.21 0.32 250.07 0.4 Manual
FR COLF Pg 08:59:08.22 -0.14 315.16 0.45 Manual
FR COLF Sg 08:59:14.95 0.36 315.16 0.45 Manual
FR PLDF Pg 08:59:15.99 -0.08 335.13 0.86 Manual
FR PLDF Sg 08:59:28.70 0.63 335.13 0.86 Manual