This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.5 MLv
Local datetime 2017/09/21 14:30
Universal datetime 2017/09/21 12:30
Latitude 45.64 ° ± 3 km
Longitude 4.32 ° ± 4 km
Depth 0 km (from location) ± 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  17 15083
Andrézieux-Bouthéon  12 9790
Veauche  9 8984
Feurs  13 8173
Villars  19 7970
Sorbiers  18 7933
La Talaudière  20 6860
Saint-Jean-Bonnefonds  23 6638
Sury-le-Comtal  15 6552
Saint-Genest-Lerpt  20 6131
Saint-Priest-en-Jarez  19 6120
Saint-Galmier  4 5722
Chazelles-sur-Lyon  4 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 0.31
Azimuthal gap 104.59 °
Number of stations used 11
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
Z3 A176A Pg 12:31:00.5 -0.21 294.18 0.19 Manual
Z3 A174A Pg 12:31:02.83 -0.65 15.58 0.37 Manual
G SSB Pg 12:31:03.86 -0.07 156.43 0.39 Manual
G SSB Sg 12:31:09.21 -0.17 156.43 0.39 Manual
Z3 A184A Pg 12:31:10.60 -0.02 172.86 0.75 Manual
FR OGRV Pg 12:31:11.26 0.33 22.9 0.77 Manual
FR OGRV Sg 12:31:21.61 -0.02 22.9 0.77 Manual
FR PYM Pg 12:31:13.55 -0.31 277.45 0.93 Manual
Z3 A170A Pg 12:31:14.82 0.38 320.89 0.96 Manual
FR OGCB Pg 12:31:15.5 0.56 144.89 0.96 Manual
FR OGCB Sg 12:31:27.79 -0.06 144.89 0.96 Manual
Z3 A168A Pg 12:31:14.80 0.31 343.85 0.96 Manual
FR OGMY Pg 12:31:17.31 -0.24 76.98 1.13 Manual
Z3 A192A Pg 12:31:18.31 0.35 170.42 1.15 Manual
Z3 A192A Sg 12:31:33.74 -0.18 170.42 1.15 Manual