Long period magnetotelluric sensors and gravimeters for continuous recording will be installed and adapted into the SIL data acquisition system. Various types of other automatic geophysical recordings are available or are being installed in Iceland. Volumetric strainmeters are operated in the South Iceland seismic zone, and a network of water level measurements in boreholes are being installed in the area. This data will be merged into the HOTSPOT center and made available to the scientific community. Physical and chemical properties of the crust and upper mantle have large impact on its electrical conductivity. Variations of these properties in space and time directly effect the conductivity. Continuous measurements of the natural electromagnetic field variations provide a powerful tool to monitor changes of the electrical parameters. The main objective is to monitor temporal changes of the conductivity distributions, which might give indications of variations of the stress field and migration of magma in the crust and mantle in geodynamically active regions. Those data will be made available to the scientific community and authorities for use in research and for risk assessment of natural hazards. The surface observable gravity reflects the underground density distribution. Temporal gravity variations forced by tidal and tectonic forces reflect mass flow and density change, height change and temporal change of mechanical (elastic, rheological) properties of crust and mantle (the latter affecting amplitudes and phases). These 'parameters' are supposed to be influenced by plume activity and can be investigated on short and medium time scales by recording at critical locations of plume/ridge interaction. Magma injections, e.g., have strain and thermal effects on the crust resulting in continuous and brittle deformation. Observations, analyses and modelling are to be prepared.