This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.5 MLv
Local datetime 2026/04/28 08:57
Universal datetime 2026/04/28 06:57
Latitude 45.98 ° ± 0.1 km
Longitude 4.00 ° ± 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
Roanne  9 34366
Vichy  48 24166
Montbrison  43 15641
Cusset  44 12661
Thiers  38 11847
Riorges  7 10774
Tarare  34 10582
Feurs  33 8173
Mably  13 7605
Le Coteau  8 6872
Thizy-les-Bourgs  26 6031
Saint-Galmier  49 5722
Chazelles-sur-Lyon  49 5357
Montrond-les-Bains  43 5302
Vindry-sur-Turdine  39 5133

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.31
Azimuthal gap 162.21 °
Number of stations used 9
Number of phases used 17

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 PLDF Pg 06:57:40.38 -0.09 266.57 0.27 Manual
FR PLDF Sg 06:57:44.38 0.23 266.57 0.27 Manual
FR COLF Pg 06:57:45.29 -0.05 204.3 0.53 Manual
FR COLF Sg 06:57:51.82 -0.86 204.3 0.53 Manual
FR CHLF Pg 06:57:46.21 -0.23 349.29 0.59 Manual
G SSB Pg 06:57:50.32 -0.04 151.49 0.8 Manual
G SSB Sg 06:58:01.0 -0.46 151.49 0.8 Manual
FR BNLF Pg 06:57:51.51 0.17 243.66 0.85 Manual
FR BNLF Sg 06:58:03.1 -0.18 243.66 0.85 Manual
FR LBL Pg 06:57:52.81 0.19 215.58 0.92 Manual
FR LBL Sg 06:58:05.36 -0.03 215.58 0.92 Manual
FR HRSF Pg 06:57:55.32 0.24 301.32 1.05 Manual
FR HRSF Sg 06:58:09.98 0.28 301.32 1.05 Manual
FR VERF Pg 06:57:55.52 -0.2 258.24 1.09 Manual
FR VERF Sg 06:58:10.36 -0.47 258.24 1.09 Manual
XP FR21A Pg 06:57:56.87 0.25 163.66 1.13 Manual
XP FR21A Sg 06:58:12.27 -0.13 163.66 1.13 Manual