Descr: Joint Geophysical Imagaing (JGI) approach to fracture-network mapping, analysis, and monitoring in relation to Enhanced Geothermal Systems (EGS). The goal of the JGI technique is provide a subsurface image that can be used for the targeting of Enhanced Geothermal System wells, including those in supercritical fluid regimes. We are seeking to collect microearthquake (MEQ) data from 5 downhole seismometers in an area with an active hydrothermal system close to an active volcanic zone. This data will be used together with magnetotelluric (MT) data from the same area. The results of the study will provide useful information for the Iceland Deep Drilling Project (IDDP)