Mount Mahameru Eruption in the Southeast Asian nation Triggers Emergency Relocations
Indonesia's Mount Semeru, the tallest summit on the island of Java, has exploded, blanketing several villages with falling ash, prompting evacuations and leading authorities to raise the warning to the highest level.
The mountain in the province of East Java released blistering plumes of fiery ash and a combination of rock, lava and gas that moved up to 7km down its slopes several times from midday to dusk, while a thick column of fiery clouds rose 1.2 miles into the sky, according to Indonesia’s Geology Agency.
The outbursts that occurred throughout the day compelled officials to increase the mountain's warning status twice, from the level three to the highest, the agency said. No deaths or injuries have been reported.
More than 300 inhabitants in the three villages most at risk in the district of Lumajang were evacuated to official safe havens, according to a representative for the national disaster mitigation agency.
He said that increased activity of the volcano on the afternoon of Wednesday prompted officials to expand the hazard area to 8km from the crater. People were urged to stay clear from an area along the Kobokan River, which is the path of the lava flow, as searing gas moved down the volcano's sides.
Footage on social media displayed a dense cloud of volcanic dust sweeping through a forested valley to a waterway beneath a bridge. Residents, some with faces smeared with volcanic dust and rain, fled to makeshift refuges or departed for alternative secure locations.
Regional news outlets indicated that emergency teams were facing challenges to save about 178 people trapped on the 12,060-foot peak at the Ranu Kumbolo monitoring post. The group comprised 137 climbers, 15 porters, seven escorts and six travel representatives, according to an spokesperson with the national park.
“They remain secure at the Ranu Kumbolo station,” an official said in a recorded message. He noted the post was located 2.8 miles from the crater on the north side of the mountain, which is outside the trajectory of the hot cloud flow that was observed traveling to the south-southeast. Inclement conditions and rain forced the group to spend the night there, he added.
Semeru, also called Great Mountain, has erupted many occasions in the last two centuries. However, as is the case with numerous of the 129 live volcanoes in Indonesia, thousands of residents continue to live on its fertile slopes.
The mountain's previous significant explosion was in late 2021, when 51 people were lost their lives and several hundred more were injured and villages were submerged in thick mud. The eruption led to the relocation of over ten thousand people from their homes.
Indonesia, an archipelago of over 280 million people, is located along the Pacific seismic belt, a horseshoe-shaped series of tectonic boundaries, and is prone to earthquakes and volcanic activity.