Eruption and Immediate Response
Mount Sinabung, one of Indonesia's most active volcanoes, erupted on Monday, spewing a column of black ash and smoke 3,500 meters from the top of the mountain into the sky over Sumatra island, as reported by The Canberra Times, CNBC TV18, and PerthNow.
There were no immediate reports of casualties, evacuations, or disruptions to flights in the region. However, residents, visitors, and tourists were advised to refrain from activities in nearby villages in Karo district in North Sumatra province and areas within 6 kilometers of the summit.
Roads, vehicles, and buildings in several villages in Karo affected by the eruption were covered in grey ash. Local authorities distributed masks to residents to protect themselves.
Alert Level Raised
Officials raised the volcano alert level to "Watch," the second-highest level for volcanic activity, which expanded the safe zone around the 2,600-meter mountain. Lana Saria, chief of Indonesia's Geological Agency, said in a statement: "This eruption is considered an initial eruption, and it is possible that a larger eruption could occur."
Background and Context
The Indonesian Geological Agency previously recorded visual evidence of Mount Sinabung's increased activity in mid-August, including dozens of earthquakes, and expanded the recommended radius for public activities.
About 30,000 people have been forced to leave their homes around Sinabung in the past few years because of volcanic activity, according to CNBC TV18 and PerthNow.
Indonesia is an archipelago of more than 280 million people with frequent seismic activity and Sinabung is among more than 120 active volcanoes. The country is prone to seismic upheaval due to its location on the Pacific "Ring of Fire," an arc of volcanoes and fault lines encircling the Pacific Basin, as noted by CNBC TV18.