Mount Semeru Outburst in Indonesia Triggers Emergency Relocations
The nation's Semeru volcano, the highest peak on the island of Java, has exploded, blanketing several villages with volcanic ash, leading to evacuations and causing officials to elevate the alert to the highest level.
The volcano in East Java province released blistering plumes of hot ash and a mixture of stone, molten rock, and gases that travelled up to 4 miles down its sides multiple times from midday to dusk, while a dense plume of hot clouds rose 2km into the air, according to the nation's geological authority.
The eruptions that unfolded throughout the day compelled authorities to increase the volcano’s alert level twice, from the level three to the highest, the agency said. No deaths or injuries have been announced.
More than 300 inhabitants in the three communities most at risk in the district of Lumajang region were relocated to official safe havens, as mentioned by a representative for the national disaster mitigation agency.
He stated that heightened volcanic movements of the volcano on Wednesday afternoon prompted authorities to widen the danger zone to 8km from the summit. 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.
Videos on online platforms showed a thick plume of ash moving through a wooded ravine to a river beneath a bridge. Residents, some with faces smeared with ash and water, fled to makeshift refuges or departed for alternative secure locations.
Local media indicated that authorities were facing challenges to save about 178 individuals trapped on the 3,676-metre mountain at the Ranu Kumbolo observation station. The party included 137 hikers, 15 porters, seven guides and six tourism officials, according to an spokesperson with the national park.
“They remain secure at Ranu Kumbolo monitoring post,” an official said in a recorded message. He said the station was situated 4.5km from the crater on the northern slope of the volcano, which is outside the trajectory of the hot cloud flow that was seen moving to the southeast direction. Inclement conditions and precipitation forced the team to remain overnight there, he added.
The volcano, also known as Mahameru, has burst numerous times in the last two centuries. Still, as is the case with many of the 129 live volcanoes in the archipelago, tens of thousands of residents continue to reside on its fertile slopes.
Semeru’s last major eruption was in late 2021, when 51 people were lost their lives and several hundred others were burned and villages were buried in layers of mud. The event led to the evacuation of over ten thousand people from their houses.
Indonesia, an island chain of over 280 million inhabitants, is located along the Pacific “ring of fire”, a horseshoe-shaped series of fault lines, and is susceptible to earthquakes and volcanic activity.