This event was reviewed by an analyst and confirmed.
Type Quarry blast
Magnitude 2.2 MLv
Local datetime 2021/10/21 12:23
Universal datetime 2021/10/21 10:23
Latitude 44.96 ° ± 0.1 km
Longitude 3.94 ° ± 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
Saint-Étienne  63 172565
Le Puy-en-Velay  8 18995
Firminy  54 17135
Le Chambon-Feugerolles  57 12317
Aubenas  53 12172
Mende  60 12134
Roche-la-Molière  60 9697
Monistrol-sur-Loire  41 8718
Unieux  56 8597
Privas  58 8266
La Ricamarie  60 7906
Yssingeaux  25 7202
Brioude  57 6721
Aurec-sur-Loire  50 6111
Sainte-Sigolène  39 5959

Past seismicity

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

Event details

Parameters

Evaluation status preliminary
RMS 0.21
Azimuthal gap 74.12 °
Number of stations used 24
Number of phases used 37

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 SGSF Pg 10:24:02.45 -0.12 291.2 0.24 Manual
FR SGSF Sg 10:24:06.16 0.22 291.2 0.24 Manual
FR LBL Pg 10:24:08.32 -0.14 299.31 0.56 Manual
FR BALS Pg 10:24:08.36 -0.12 218.26 0.56 Manual
FR COLF Pg 10:24:08.29 -0.31 342.44 0.57 Manual
FR BANN Pg 10:24:09.20 -0.25 165.08 0.61 Manual
FR OGCB Pg 10:24:13.55 0.02 97.21 0.83 Manual
FR CMPS Pg 10:24:13.89 -0.06 304.1 0.85 Manual
FR TRBF Pg 10:24:13.57 -0.39 178.94 0.86 Manual
FR TRBF Sg 10:24:25.92 0.05 178.94 0.86 Manual
FR OGDF Pg 10:24:15.14 0.3 116.18 0.9 Manual
FR LEUC Pg 10:24:16.97 0.25 258.99 1 Manual
FR PLDF Pg 10:24:17.29 0.11 347.7 1.03 Manual
FR PLDF Sg 10:24:31.24 -0.25 347.7 1.03 Manual
FR FRNF Pn 10:24:18.73 -0.2 294.08 1.06 Manual
FR FRNF Sg 10:24:32.42 -0.11 294.08 1.06 Manual
MT AVR Pg 10:24:20.85 0.13 89.61 1.22 Manual
FR AGO Pg 10:24:21.27 0.38 332.82 1.23 Manual
FR AGO Sg 10:24:37.99 0.02 332.82 1.23 Manual
FR OGCC Pn 10:24:21.71 -0.02 114.22 1.27 Manual
FR VERF Pn 10:24:22.0 -0.08 308.09 1.29 Manual
FR VERF Sg 10:24:40.31 0.22 308.09 1.29 Manual
FR GRN Pg 10:24:22.63 0.21 76.99 1.31 Manual
FR GRN Sg 10:24:40.52 -0.13 76.99 1.31 Manual
MT GUI Pn 10:24:22.27 -0.26 77.38 1.33 Manual
MT GUI Sg 10:24:41.41 0.24 77.38 1.33 Manual
FR OGS2 Pg 10:24:23.11 0.38 84.85 1.33 Manual
FR CHA2 Pn 10:24:23.27 -0.26 82.76 1.4 Manual
FR CHA2 Sn 10:24:42.29 -0.34 82.76 1.4 Manual
FR OGSM Pg 10:24:24.14 0.01 61.81 1.4 Manual
FR OGSM Sg 10:24:43.54 -0.09 61.81 1.4 Manual
FR SLVF Pg 10:24:25.93 0.33 239.35 1.48 Manual
FR SLVF Sg 10:24:46.15 -0.08 239.35 1.48 Manual
FR OGVG Pn 10:24:25.75 0.14 94.6 1.55 Manual
FR OGVG Pg 10:24:26.85 -0.03 94.6 1.55 Manual
FR OGVG Sg 10:24:48.42 -0.08 94.6 1.55 Manual
FR GZNF Pg 10:24:30.14 0.27 315.48 1.72 Manual