This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.1 MLv
Local datetime 2025/09/30 10:14
Universal datetime 2025/09/30 08:14
Latitude 45.47 ° ± 0.3 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  38 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 0.26
Azimuthal gap 67.27 °
Number of stations used 14
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 COLF Pg 08:14:50.7 -0.3 300.31 0.07 Manual
XP FR14B Pg 08:14:52.56 -0.1 85.52 0.19 Manual
XP FR16A Pg 08:14:53.61 0.03 144.42 0.24 Manual
XP FR16A Sg 08:14:57.45 0.56 144.42 0.24 Manual
FR SGSF Pg 08:14:57.29 0.08 194.74 0.43 Manual
FR LBL Pg 08:14:57.36 0.02 237.86 0.44 Manual
FR PLDF Pg 08:14:58.59 -0.02 348.01 0.51 Manual
G SSB Pg 08:14:59.96 0.16 108.89 0.57 Manual
FR AGO Pg 08:15:02.83 0 322.57 0.74 Manual
XP FR21A Pg 08:15:02.94 -0.13 139.96 0.75 Manual
XP FR08A Pg 08:15:03.62 0.05 18.25 0.78 Manual
XP FR23A Pg 08:15:03.84 -0.08 202.93 0.79 Manual
XP FR22A Pg 08:15:03.91 -0.5 178.63 0.82 Manual
FR CHLF Pg 08:15:09.60 0.15 2.54 1.09 Manual
FR LEUC Pg 08:15:10.41 0.51 231.16 1.12 Manual