Indonesia sits on the Pacific “Ring of Fire” where tectonic plates collide, causing frequent volcanic activity as well as earthquakes. Indonesia’s Mount Semeru volcano has erupted, sending ash billowing into the sky and sparking evacuations on the country’s main island, Java. No injuries have been reported but nearly 2,000 people were evacuated from the area around the volcano. The increased threat level from three to four also means the danger threatens people’s homes, a spokesman for Indonesia’s Center for Volcanology , can magma be used to generate income ?

