This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.7 MLv
Local datetime 2017/05/22 10:46
Universal datetime 2017/05/22 08:46
Latitude 45.31 ° ± 3 km
Longitude 3.90 ° ± 4 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
Le Puy-en-Velay  31 18995
Firminy  32 17135
Montbrison  35 15641
Saint-Just-Saint-Rambert  34 15083
Le Chambon-Feugerolles  35 12317
Roche-la-Molière  36 9697
Monistrol-sur-Loire  22 8718
Unieux  31 8597
La Ricamarie  38 7906
Yssingeaux  26 7202
Ambert  30 6671
Sury-le-Comtal  34 6552
Saint-Genest-Lerpt  38 6131
Aurec-sur-Loire  25 6111
Sainte-Sigolène  27 5959

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.45
Azimuthal gap 92.07 °
Number of stations used 11
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
G SSB Pg 08:46:46.56 -0.27 93.36 0.46 Manual
G SSB Sg 08:46:53.28 0.12 93.36 0.46 Manual
FR LBL Pg 08:46:47.47 0.45 260.9 0.47 Manual
Z3 A184A Pg 08:46:48.85 -0.13 136.47 0.57 Manual
Z3 A184A Sg 08:46:56.58 -0.35 136.47 0.57 Manual
Z3 A171A Pg 08:46:55.4 -0.16 9.46 0.91 Manual
Z3 A171A Pn 08:46:56.53 -0.59 9.46 0.91 Manual
Z3 A192A Pg 08:46:56.44 0.63 148.31 0.94 Manual
FR BANN Pg 08:46:56.32 0.18 168.83 0.96 Manual
FR BANN Sg 08:47:09.32 -0.12 168.83 0.96 Manual
FR OGCB Pn 08:46:57.8 -0.83 117.89 0.96 Manual
RA OCSJ Pn 08:46:59.74 -0.07 312.75 1.1 Manual
FR OGRV Pn 08:47:00.95 -0.14 29.6 1.2 Manual
FR OGSM Pg 08:47:03.16 0.6 75.96 1.3 Manual
FR OGSM Sn 08:47:20.73 0.14 75.96 1.3 Manual
FR OGMY Pn 08:47:04.95 -0.39 66.99 1.51 Manual
FR OGMY Pg 08:47:07.38 0.96 66.99 1.51 Manual