Volcano Mahameru Outburst in Indonesia Prompts Evacuations
Indonesia's Semeru volcano, the highest peak on the island of Java, has exploded, blanketing several villages with volcanic ash, prompting evacuations and causing officials to elevate the alert to the highest level.
The mountain in the province of East Java released searing clouds of fiery ash and a mixture of stone, molten rock, and gases that moved up to 7km down its slopes several times from midday to evening, while a dense plume of hot clouds rose 2km into the sky, as stated by the nation's geological authority.
The outbursts that unfolded throughout the day compelled officials to increase the volcano’s alert level twice, from the third-highest level to the highest, the authority said. No casualties have been reported.
Over three hundred residents in the three communities most at risk in the district of Lumajang region were evacuated to official safe havens, according to a spokesperson for the national emergency management body.
He said that increased activity of the volcano on the afternoon of Wednesday prompted authorities to widen the hazard area to 5 miles from the summit. People were advised to stay clear from an zone along the Besuk Kobokan River, which is the route of the lava flow, as scorching gases flowed down Semeru’s slopes.
Footage on social media displayed a thick plume of ash moving through a wooded ravine to a river beneath a bridge. Locals, some with faces smeared with ash and water, escaped to makeshift refuges or departed for other safe areas.
Regional news outlets reported that authorities were struggling to rescue about 178 individuals stranded on the 3,676-metre peak at the Ranu Kumbolo observation station. The party comprised 137 hikers, 15 carriers, seven escorts and six tourism officials, according to an official with the national park.
“They remain secure at Ranu Kumbolo monitoring post,” an official said in a recorded message. He said the post was located 4.5km from the crater on the north side of the volcano, which is not in the path of the fiery cloud movement that was observed moving to the southeast direction. Inclement conditions and precipitation forced the group to spend the night there, he explained.
The volcano, also called Mahameru, has erupted numerous times in the past 200 years. Still, as is the situation with many of the 129 live volcanoes in the archipelago, thousands of residents continue to live on its fertile slopes.
Semeru’s last major eruption was in December 2021, when 51 individuals were killed and several hundred others were injured and settlements were submerged in thick mud. The event forced the evacuation of over ten thousand residents from their homes.
Indonesia, an archipelago of over 280 million inhabitants, is located along the Pacific “ring of fire”, a curved series of tectonic boundaries, and is susceptible to earthquakes and volcanic activity.
