An active volcano is unpredictable. Geologists and vulcanologist can predict the possible time of eruption, the amount of lava that it will give, the location of lava flow and how wide is the area to be evacuated. Now, there are ways to control the lava flow but it really needs careful engineering because a certain failure in lava flow organization can kill and destroy resources. One of the methods is diverting the lava flow. Once the possible location where the lava will flow, scientists will see if it will bring excessive damage if the flow will continue on a certain direction. If it is proven that lava flow in a certain direction is destructive, ways will be done in order to divert or change the direction of the flow. Diverting the flow lava is necessary in order to lessen the possible damage that it can do. For example, if the lava will flow in a community, experts will devise a way to divert it in an open field or any low land. Factors can that affect their decisions include: lives, resources, health related issues and tourism.