This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 1.2 MLv
Local datetime 2012/03/20 09:19
Universal datetime 2012/03/20 08:19
Latitude 45.22 ° ± 0.5 km
Longitude 4.09 ° ± 0.2 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
Saint-Étienne  32 172565
Le Puy-en-Velay  26 18995
Firminy  24 17135
Saint-Just-Saint-Rambert  33 15083
Le Chambon-Feugerolles  27 12317
Roche-la-Molière  29 9697
Monistrol-sur-Loire  11 8718
Unieux  25 8597
Villars  34 7970
La Ricamarie  30 7906
Yssingeaux  9 7202
Saint-Genest-Lerpt  32 6131
Saint-Priest-en-Jarez  36 6120
Aurec-sur-Loire  19 6111
Sainte-Sigolène  11 5959

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.5
Azimuthal gap 105.84 °
Number of stations used 7
Number of phases used 14

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
X7 PY39 Pg 08:19:25.73 -0.05 188.92 0.24 Manual
X7 PY39 Sg 08:19:28.93 -0.05 188.92 0.24 Manual
FR SSB Pg 08:19:27.25 -0.02 79.11 0.32 Manual
FR SSB Sg 08:19:31.54 0.01 79.11 0.32 Manual
FR PLDF Pg 08:19:37.32 0.8 336.39 0.82 Manual
FR PLDF Pn 08:19:39.21 0.38 336.39 0.82 Manual
FR PLDF Sn 08:19:50.41 -1 336.39 0.82 Manual
FR PYM Pn 08:19:41.9 0.78 305.29 0.93 Manual
FR PYM Sn 08:19:54.6 0.06 305.29 0.93 Manual
X7 PY37 Pn 08:19:42.68 0.11 257.15 1.1 Manual
FR TRBF Pg 08:19:42.28 0.24 184.95 1.12 Manual
FR TRBF Sg 08:19:57.9 0.34 184.95 1.12 Manual
FR OG35 Pn 08:19:45.76 0.08 50.96 1.33 Manual
FR OG35 Sn 08:20:04.38 0.98 50.96 1.33 Manual