He had been almost asleep since the end of 2010. Mount Merapi on the island of Java, one of the most active volcanoes in the world, woke up suddenly this Saturday, March 11, in Indonesia. The eruption took place at 12:12 p.m. local time (6:12 a.m. Paris time), the Indonesian Disaster Management Agency (BNPB) said. No casualties were immediately reported, according to authorities, who established a seven-kilometre restriction zone around the crater.