This paper presents the role of space based technologies like remote sensing (RS) and Global Navigation and satellite Systems (GNSS) for earthquake disaster management. The space based technologies like GNSS and RS applications can help in prediction, preparation, response and recovery phases of the disaster management cycle. After an earthquake mapping the extents of damages, locating the urgency of the areas and reconstruction of these areas can be provided as valuable information by space based solutions to disaster management. Financial and economic aspects of space systems are also presented through a Cost Benefit Analysis (CBA), and illustrated by a quantitative case study.