Volcano Semeru Outburst in the Southeast Asian nation Prompts Evacuations
Indonesia's Semeru volcano, the highest peak on Java island, has erupted, covering multiple communities with falling ash, prompting evacuations and causing officials to elevate the alert to the maximum level.
The volcano in East Java province unleashed searing clouds of fiery ash and a mixture of rock, lava and gas that travelled up to 7km down its sides multiple times from noon to evening, while a dense plume of hot clouds rose 2km into the air, according to the nation's geological authority.
The eruptions that occurred throughout the day forced authorities to raise the volcano’s alert level on two occasions, from the level three to the highest, the authority reported. No casualties have been reported.
More than 300 residents in the three villages most at risk in the district of Lumajang region were relocated to official safe havens, according to a spokesperson for the national disaster mitigation agency.
He stated that increased activity of the volcano on Wednesday afternoon prompted authorities to expand the hazard area to 5 miles from the summit. Residents were urged to keep away from an zone along the Kobokan River, which is the route of the molten rock stream, as searing gas flowed down the volcano's sides.
Videos on social media showed a thick plume of volcanic dust moving through a forested valley to a waterway beneath a overpass. Locals, some with faces covered with ash and rain, fled to makeshift refuges or left for alternative secure locations.
Regional news outlets reported that authorities were struggling to rescue about 178 individuals trapped on the 12,060-foot mountain at the Ranu Kumbolo monitoring post. The party included 137 climbers, 15 porters, seven escorts and six tourism officials, according to an official with the national park.
“They are currently safe at Ranu Kumbolo monitoring post,” an official stated in a recorded message. He noted the post was situated 4.5km from the summit on the northern slope of the mountain, which is not in the path of the fiery cloud movement that was observed moving to the south-southeast. Inclement conditions and precipitation forced the group to remain overnight there, he explained.
Semeru, also known as Great Mountain, has erupted many occasions in the last two centuries. Still, as is the situation with numerous of the 129 live volcanoes in Indonesia, tens of thousands of people continue to reside on its fertile slopes.
The mountain's previous significant explosion was in December 2021, when 51 people were killed and hundreds others were burned and settlements were submerged in layers of mud. The eruption led to the relocation of over ten thousand residents from their homes.
The country, an archipelago of more than 280 million people, is located along the Pacific seismic belt, a curved series of fault lines, and is prone to earthquakes and volcanic activity.