This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.2 MLv
Local datetime 2026/06/01 11:29
Universal datetime 2026/06/01 09:29
Latitude 45.47 ° ± 0.1 km
Longitude 3.77 ° ± 0.1 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  42 17135
Montbrison  28 15641
Saint-Just-Saint-Rambert  37 15083
Issoire  42 14822
Andrézieux-Bouthéon  40 9790
Roche-la-Molière  44 9697
Veauche  42 8984
Monistrol-sur-Loire  38 8718
Unieux  40 8597
Brioude  36 6721
Ambert  10 6671
Sury-le-Comtal  33 6552
Aurec-sur-Loire  36 6111
Sainte-Sigolène  44 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 0.3
Azimuthal gap 106.47 °
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 COLF Pg 09:29:36.70 -0.16 298.74 0.06 Manual
FR COLF Sg 09:29:38.12 0.39 298.74 0.06 Manual
FR SGSF Pg 09:29:43.85 0.04 194.4 0.44 Manual
FR SGSF Sg 09:29:49.91 0.02 194.4 0.44 Manual
FR LBL Pg 09:29:43.98 0.08 237.4 0.44 Manual
FR LBL Sg 09:29:49.85 -0.19 237.4 0.44 Manual
FR PLDF Pg 09:29:44.94 -0.16 348.15 0.51 Manual
G SSB Pg 09:29:46.39 -0.02 109.12 0.58 Manual
XP FR22A Pg 09:29:51.10 0.07 178.5 0.82 Manual
XP FR22A Pn 09:29:53.25 -0.11 178.5 0.82 Manual
FR CHLF Pg 09:29:56.16 0.21 2.64 1.09 Manual
FR CHLF Sg 09:30:10.100 -0.11 2.64 1.09 Manual
FR HRSF Pn 09:29:59.21 -0.44 325 1.29 Manual
FR HRSF Pg 09:30:00.24 0.58 325 1.29 Manual
FR HRSF Sg 09:30:16.88 -0.7 325 1.29 Manual