Seismic monitoring of Séchilienne
Real-time detection of events
Since November 2012, data from some RAP (OGS1,OGS2,OGS3) or OMIV (THE,RUI,GAL) stations are transferred and processed in near real-time. The catalog of detected events is available here in raw text format. Catalogs in html format with links to figures and RESIF seed data are also available for
The figure below shows rockfalls and quakes detected by OMIV seismic stations for the last month, and is updated automatically every hour.
Information about seismic data
Seismograms in SAC format for each detected event are available from the html catalog by clicking on "SAC" in the last column (one zip file for all traces). For RAP stations (OGS1, OGS2 and OGS3), channels HH* are raw velocimetric data, WH* are 1-20 Hz bandpass filtered data, and HN* are accelerometric data. Vertical components are notted by *Z , horizontal compoents are *E and *N. Amplitude are in counts. For RAP stations, multiply velocimetric data by 3.33 to convert amplitude to nm/s, and accelerometric data by 0.00126 to obtain mm/s^2. For OMIV stations THE and RUI, multiply data by 0.3573 to convert from counts to nm/s. For OMIV station GAL, multiply by 2.2039.
Seismic activity, and correlation with displacement and climate
Publications and communications