This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.4 MLv
Local datetime 2025/12/18 10:30
Universal datetime 2025/12/18 09:30
Latitude 45.09 ° ± 0.4 km
Longitude 3.94 ° ± 0.6 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  51 172565
Le Puy-en-Velay  8 18995
Firminy  42 17135
Saint-Just-Saint-Rambert  50 15083
Le Chambon-Feugerolles  45 12317
Roche-la-Molière  48 9697
Monistrol-sur-Loire  29 8718
Unieux  43 8597
Villars  53 7970
La Ricamarie  48 7906
Yssingeaux  16 7202
Brioude  49 6721
Saint-Genest-Lerpt  51 6131
Aurec-sur-Loire  37 6111
Sainte-Sigolène  28 5959

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.4
Azimuthal gap 182.13 °
Number of stations used 8
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
FR SGSF Pg 09:30:47.49 -0.08 258.83 0.23 Manual
FR SGSF Sg 09:30:51.35 0.56 258.83 0.23 Manual
FR COLF Pg 09:30:51.39 -0.09 336.99 0.44 Manual
FR COLF Sg 09:30:58.25 0.61 336.99 0.44 Manual
FR LBL Pg 09:30:52.84 0.11 285.98 0.51 Manual
FR LBL Sg 09:30:59.63 -0.2 285.98 0.51 Manual
FR BANN Pg 09:30:57.15 0.14 167.89 0.74 Manual
FR BANN Sg 09:31:07.15 -0.16 167.89 0.74 Manual
FR CZNF Pg 09:30:57.54 0.09 262.58 0.76 Manual
FR PLDF Pg 09:31:00.13 0.15 345.77 0.9 Manual
FR PLDF Sg 09:31:12.85 0.35 345.77 0.9 Manual
FR FRNF Pg 09:31:01.22 -0.93 287.19 1.02 Manual
FR FRNF Sg 09:31:16.63 0.33 287.19 1.02 Manual
FR LEUC Pg 09:31:02.62 0.06 251.83 1.04 Manual
FR LEUC Sg 09:31:17.72 0.7 251.83 1.04 Manual