Natural disasters can not be rejected, for thus kodrad live, but separately reduce the risk of loss of both property and lives, we seek to take reasonable precautions for the threat of earthquakes on man-made causes, such as floods etc., and trying to find out early before the quake occurred. One of the software developed is a tool that can determines the existence of an earthquake. This tool can detect the occurrence both within Indonesia and abroad, because it is the main requirement that is needed is an application that is installed on your computer must be connected with internet service. If you want to get a free tool you can download at http://sentralnet-online.blogspot.com/2010/11/software-pendeteksi-gempa.html