Mount Semeru Outburst in Indonesia Prompts Emergency Relocations
Indonesia's Mount Semeru, the highest peak on the island of Java, has exploded, covering multiple communities with volcanic ash, prompting evacuations and causing officials to elevate the alert to the maximum level.
The volcano in East Java province unleashed searing clouds of hot ash and a combination of stone, molten rock, and gases that moved up to 7km down its slopes multiple times from midday to dusk, while a thick column of hot clouds rose 2km into the sky, as stated by Indonesia’s Geology Agency.
The outbursts that occurred throughout the day compelled officials to increase the volcano’s alert level twice, from the third-highest level to the top level, the agency said. No casualties have been reported.
Over three hundred inhabitants in the three villages most at risk in the district of Lumajang region were relocated to government shelters, as mentioned by a representative for the national emergency management body.
He stated that increased activity of the mountain on the afternoon of Wednesday prompted officials to widen the hazard area to 5 miles from the crater. People were advised to keep away from an area along the Kobokan River, which is the path of the molten rock stream, as searing gas flowed down Semeru’s slopes.
Footage on online platforms displayed a thick plume of volcanic dust sweeping through a wooded ravine to a waterway beneath a overpass. Residents, some with faces smeared with volcanic dust and water, escaped to temporary shelters or departed for other safe areas.
Local media reported that emergency teams were struggling to save about 178 people stranded on the 3,676-metre peak at the Ranu Kumbolo monitoring post. The group comprised 137 hikers, 15 porters, seven guides and six travel representatives, according to an spokesperson with the protected area.
“They remain secure at the Ranu Kumbolo station,” a spokesperson said in a video statement. He noted the station was situated 4.5km from the summit on the northern slope of the mountain, which is outside the trajectory of the hot cloud flow that was seen moving to the south-southeast. Bad weather and rain forced the group to spend the night there, he explained.
The volcano, also called Mahameru, has burst many occasions in the last two centuries. Still, as is the situation with many of the 129 live volcanoes in Indonesia, tens of thousands of residents still to reside on its productive highlands.
Semeru’s last major eruption was in December 2021, when 51 individuals were lost their lives and several hundred others were burned and settlements were submerged in thick mud. The event forced the relocation of over ten thousand people from their homes.
The country, an island chain of more than 280 million inhabitants, is located along the Pacific seismic belt, a curved series of tectonic boundaries, and is susceptible to seismic events and volcanism.
