In order to measure ground movement in the area of the Canaries archipelago, RTsys have designed a system combining 3 geophones; two pointing horizontally and one vertically. A hydrophone has been added to record the noise caused by the ground or by bubbles formed in the water by vibrations.

RTsys recorder 2 El Hierro c DC AmbientalesPhoto credit: DC Ambientales

The device is original in that it combines and synchronizes these four different analogue sensors with digital sensors measuring temperature, salinity and other environmental parameters. RTsys has been able to overcome this challenge thanks to the SDA card: the technological core of the French company's products. Used on the ground by DC Ambientales (the Spanish distributor of RTsys products), this system has a battery life of around forty-five days. The data measured are recovered when the system is resurfaced.

The seismic research project in the Canaries archipelago area was driven by an underwater eruption off the coast of the island of El Hierro, on 10th October 2011, after 40 years of inactivity. In the weeks following the eruption, the first research projects were already underway. These projects are being continued by five Spanish research institutes as part of the VULCANO II project.

Learn more about RTsys recorders.

Video of the scientific campaign:

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