Observatoire Multidisciplinaire des Instabilités de Versants





Video monitoring

A camera was installed in autumn 2009 by CETE Lyon at Mont Falcon to complement the monitoring system. Since then, a few rockfalls have been detected both by the camera and the seismic network. The table below lists detected rockfalls with links to figures of seismic signals and seismicity data.

Date (local time) magnitudeSAC filesFigurescomments
2009/11/11
07:47
0.52 THE, RUI and GAL fig1, fig2, fig4, fig5, The biggest rockfall (several tens of cubic meters?) but it's hard to see anything in the movie because of the bad image resolution.
2010/2/27
12:13
-0.56 THE and GAL fig1, fig2, fig4, fig5, A block of a few cubic meters (?) falls from the east border of Les Ruines.
2010/9/26
15:17
-0.88 THE, RUI and GAL fig1, fig2, fig4, fig5, A small block in the upper part of Les Ruines.
2010/9/27
12:20
-0.40 THE, RUI and GAL fig1, fig2, fig4, fig5, A small block in the upper part of Les Ruines followed by a smaller event.
2010/10/20
15:24
-0.47 THE, RUI and GAL fig1, fig2, fig4, fig5, Left corridor of Les Ruines.
2010/10/25
11:16
-0.82 THE, RUI and GAL fig1, fig2, fig4, fig5, Right corridor of Les Ruines.
2010/10/25
17:29
-0.30 THE, RUI and GAL fig1, fig2, fig4, fig5, Right corridor of Les Ruines.
2010/10/25
18:08
-0.35 THE, RUI and GAL fig1, fig2, fig4, fig5, Right corridor of Les Ruines.
2010/10/25
18:29
-0.91 THE, RUI and GAL fig1, fig2, fig4, fig5, Right corridor of Les Ruines.
2011/2/27
16:18
0.1 THE, and RUI fig1, fig2, fig4, fig5, Right corridor of Les Ruines. Lot of clouds in the upper part of Les Ruines. Wee see only the end of the rockfall.
2011/2/28
15:49
-0.28 THE, RUI, and GAL RUI fig1, fig2, fig4, fig5, Right corridor of Les Ruines.
2011/3/18
12:13
-0.13 RUI fig1, fig2, fig4, fig5, Central corridor of Les Ruines.
2011/3/18
13:12
-0.75 RUI fig1, fig2, fig4, fig5, Central corridor of Les Ruines.