Mount Sinabung in Karo regency, North Sumatra, erupted again several times on Thursday, spewing out a 2,000-meter-high column of ash and smoke. The increased plumes of volcanic ash triggered a warning for aviation. The first eruption was recorded at 6:07 a.m. and continued for around 11 minutes, with a 1,000-m-high column of ash moving toward the east, the southeast and the south, the National Disaster Mitigation Agency (BNPB) reported. The second eruption lasted for around 20 minutes starting at 1:08 p.m. as the volcano spewed a 2,000-m-high column of ash, which blew toward the east and the southeast, the Volcanology and Geological Hazard Mitigation Center (PVMBG) said. As of Thursday, the PVMBG still maintained the volcano's alert status at Siaga, or level three of the four-tiered alert system. The authorities, however, have reminded the public to steer clear of a 3-kilome...