This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.6 MLv
Local datetime 2026/04/30 10:03
Universal datetime 2026/04/30 08:03
Latitude 45.65 ° ± 0.1 km
Longitude 4.32 ° ± 0.0 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
Montbrison  20 15641
Saint-Just-Saint-Rambert  19 15083
Andrézieux-Bouthéon  13 9790
Veauche  10 8984
Feurs  11 8173
Villars  21 7970
Sorbiers  20 7933
La Talaudière  21 6860
Saint-Jean-Bonnefonds  24 6638
Sury-le-Comtal  16 6552
Saint-Genest-Lerpt  22 6131
Saint-Priest-en-Jarez  20 6120
Saint-Galmier  6 5722
Chazelles-sur-Lyon  5 5357
Montrond-les-Bains  6 5302

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.32
Azimuthal gap 43.3 °
Number of stations used 21
Number of phases used 41

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
XP FR14B Pg 08:03:48.51 -0.18 228.28 0.26 Manual
XP FR14B Sg 08:03:52.28 0.25 228.28 0.26 Manual
FR OGGL Pg 08:03:49.35 -0.26 42.55 0.31 Manual
FR OGGL Sg 08:03:54.23 0.61 42.55 0.31 Manual
G SSB Pg 08:03:51.19 -0.31 156.81 0.41 Manual
G SSB Sg 08:03:57.17 0.27 156.81 0.41 Manual
FR COLF Pg 08:03:52.48 -0.05 250.88 0.46 Manual
FR COLF Sg 08:03:58.98 0.27 250.88 0.46 Manual
FR PLDF Pg 08:03:54.40 -0.24 303.02 0.58 Manual
FR OGRV Pg 08:03:57.97 -0.03 23.59 0.76 Manual
FR OGRV Sg 08:04:08.92 0.69 23.59 0.76 Manual
XP FR21A Pg 08:03:57.91 -0.29 172.73 0.77 Manual
XP FR21A Sg 08:04:08.83 0.26 172.73 0.77 Manual
FR LBL Pg 08:04:00.26 0.28 241.11 0.86 Manual
FR LBL Sg 08:04:12.7 0.43 241.11 0.86 Manual
FR CHLF Pg 08:04:02.6 0.22 340.28 0.96 Manual
FR CHLF Sg 08:04:15.52 0.67 340.28 0.96 Manual
FR OGCB Pg 08:04:02.27 0.21 145.21 0.97 Manual
FR OGCB Sg 08:04:15.25 0.02 145.21 0.97 Manual
FR BNLF Pg 08:04:02.33 0.12 267.32 0.98 Manual
FR BNLF Sg 08:04:15.76 0.26 267.32 0.98 Manual
FR CMPS Pg 08:04:02.75 0.29 257.85 1 Manual
FR CMPS Sg 08:04:16.36 0.43 257.85 1 Manual
XP FR22A Pg 08:04:03.86 0.02 200.02 1.07 Manual
XP FR22A Sg 08:04:18.53 0.2 200.02 1.07 Manual
FR GRN Pg 08:04:04.40 0.25 111.76 1.09 Manual
FR GRN Sg 08:04:18.98 0.12 111.76 1.09 Manual
FR OGMY Pg 08:04:04.58 -0.28 77.76 1.13 Manual
FR OGMY Sg 08:04:20.42 0.33 77.76 1.13 Manual
XP FR26A Pg 08:04:05.27 -0.13 170.73 1.15 Manual
XP FR26A Sg 08:04:21.23 0.21 170.73 1.15 Manual
FR OGS3 Pg 08:04:06.20 -0.1 118.51 1.2 Manual
FR OGS3 Sg 08:04:22.58 0.01 118.51 1.2 Manual
FR CHA2 Pg 08:04:06.98 0.05 114.97 1.24 Manual
FR CHA2 Sg 08:04:23.60 -0.08 114.97 1.24 Manual
FR PRABE Pg 08:04:07.40 0.16 108.93 1.25 Manual
FR PRABE Sg 08:04:24.47 0.26 108.93 1.25 Manual
FR VERF Pn 08:04:07.37 -0.24 274.96 1.29 Manual
FR VERF Sg 08:04:24.44 -0.86 274.96 1.29 Manual
FR HRSF Pg 08:04:10.23 -0.1 308.26 1.42 Manual
FR HRSF Sg 08:04:29.7 -0.48 308.26 1.42 Manual