This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.2 MLv
Local datetime 2025/09/29 11:02
Universal datetime 2025/09/29 09:02
Latitude 45.47 ° ± 0.4 km
Longitude 3.77 ° ± 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
Firminy  41 17135
Montbrison  28 15641
Saint-Just-Saint-Rambert  37 15083
Issoire  42 14822
Andrézieux-Bouthéon  40 9790
Roche-la-Molière  43 9697
Veauche  42 8984
Monistrol-sur-Loire  37 8718
Unieux  39 8597
Brioude  36 6721
Ambert  10 6671
Sury-le-Comtal  33 6552
Aurec-sur-Loire  35 6111
Sainte-Sigolène  43 5959
Montrond-les-Bains  41 5302

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 82.41 °
Number of stations used 11
Number of phases used 16

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 COLF Pg 09:02:56.55 -0.37 301.62 0.07 Manual
XP FR14B Pg 09:02:59.5 -0.14 84.93 0.19 Manual
FR SGSF Pg 09:03:03.4 -0.67 194.84 0.43 Manual
FR SGSF Sg 09:03:09.78 0.06 194.84 0.43 Manual
FR LBL Pg 09:03:03.82 -0.04 238.09 0.44 Manual
FR LBL Sg 09:03:09.56 -0.42 238.09 0.44 Manual
G SSB Pg 09:03:05.94 -0.37 108.72 0.57 Manual
FR AGO Pg 09:03:09.62 0.23 322.64 0.74 Manual
FR AGO Sg 09:03:19.85 0.2 322.64 0.74 Manual
XP FR22A Pg 09:03:10.99 0.09 178.64 0.82 Manual
FR VERF Pg 09:03:13.55 0.22 287.9 0.95 Manual
FR VERF Sg 09:03:26.69 0.14 287.9 0.95 Manual
FR CHLF Pg 09:03:15.95 -0.06 2.52 1.09 Manual
FR CHLF Sg 09:03:30.87 -0.37 2.52 1.09 Manual
FR LEUC Pg 09:03:16.83 0.43 231.24 1.12 Manual
FR OGCB Pg 09:03:17.23 0.75 122.85 1.12 Manual