After Chianti Earthquake of December 2014, University of Florence - Earth Science Dep., with LGS Reserch Group, started to deploy a seismic network in tuscany with the aim to monitor the seismic activity in this region and localize events with Richter Magnitude Ml>2,5/3,0. In the first step it will be installed at least 6 stations (see Fig.1).
All stations will be equipped with a Guralp CMG-DM24S3EAMU digitalized and a Lennartz seismic sensor LE-3D/5s (except LAM, equipped with a Guralp seismic sensor CMG-6T with a period of 10s and TFR equipped with a Guralp seismic sensor CMG-40T with a period of 30s). Power supply is provided by solar panels and 12 V batteries.
Data are transmitted through a router/modem 3G/LTE to the Earth Science Dep. where it is acquired with Earthworm (an open source software that is used globally for regional and local network seismology) and then organized in a database mysql with Winston (a Java-based seismic wave server), and finally stored in several backup.
Seismic signals are elaborated in real time by a several scripts in MatLab code which provide:
- to build a picture with the drum-plot
- to trigger the recorded events by a LTA/STA algorithm
- to calculate the Ricther Magnitude for each station
- to localize each event
Actually we have installed four stations (LAM, TRF, BDM and AMT) and we have planned to install one more within next September (PTM).
||Location||Elev. (m a.s.l.)||Seismic sensor||Status|
|BDM||Barberino M.llo (FI)
||466||Lennartz LE 3D - 5s||Active|
|TRF||Firenze (Arcetri)||138||Guralp CMG 40T||Active|
|LAM||Greve in Chianti (Lamole)||549||Guralp CMG 6T||Active|
|AMT||Abbadia S. Salvatore|
|1002||Lennartz LE 3D - 5s||Active|
|CSF||Castelfalfi||156||Lennartz LE 3D - 5s||in project for next September|
(Loro Ciuffenna - AR)
|690||Lennartz LE 3D - 5s||in project for the end of 2016|
Once five stations will be active, we will publish on the web site the pages with the drum-plots, magnitude and localization of each recorded event.
So..... stay tuned!!!