This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.6 MLv
Local datetime 2023/10/11 10:23
Universal datetime 2023/10/11 08:23
Latitude 45.53 ° ± 0.4 km
Longitude 4.10 ° ± 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
Firminy  22 17135
Montbrison  9 15641
Saint-Just-Saint-Rambert  12 15083
Le Chambon-Feugerolles  24 12317
Andrézieux-Bouthéon  14 9790
Roche-la-Molière  21 9697
Veauche  15 8984
Unieux  19 8597
Villars  21 7970
Sury-le-Comtal  6 6552
Saint-Genest-Lerpt  20 6131
Saint-Priest-en-Jarez  22 6120
Aurec-sur-Loire  19 6111
Saint-Galmier  19 5722
Montrond-les-Bains  16 5302

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.38
Azimuthal gap 138.15 °
Number of stations used 8
Number of phases used 13

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 08:23:11.44 -0.18 264.95 0.29 Manual
FR COLF Sg 08:23:15.73 0.1 264.95 0.29 Manual
G SSB Pg 08:23:13.74 0.1 128.39 0.4 Manual
G SSB Sg 08:23:19.60 0.44 128.39 0.4 Manual
FR SGSF Pg 08:23:17.27 0.08 215.64 0.59 Manual
FR SGSF Sg 08:23:25.35 -0.02 215.64 0.59 Manual
FR CMPS Pg 08:23:21.34 -0.32 264.11 0.83 Manual
FR OGCB Pn 08:23:25.4 -0.93 133.5 0.98 Manual
FR CHLF Pg 08:23:26.11 0.37 350.24 1.05 Manual
FR CHLF Sg 08:23:40.20 -0.11 350.24 1.05 Manual
FR BANN Pg 08:23:28.28 0.49 178.06 1.16 Manual
FR BANN Sg 08:23:44.42 0.52 178.06 1.16 Manual
FR HRSF Pg 08:23:32.34 0.17 316.05 1.39 Manual