Mount Semeru Eruption in the Southeast Asian nation Triggers Emergency Relocations
The nation's Semeru volcano, the tallest summit on Java island, has exploded, covering several villages with falling ash, prompting evacuations and causing officials to elevate the alert to the highest level.
The volcano in the province of East Java released blistering plumes of fiery ash and a combination of rock, lava and gas that moved up to 4 miles down its slopes several times from noon to evening, while a thick column of hot clouds rose 1.2 miles into the air, according to the nation's geological authority.
The eruptions that unfolded throughout the day forced officials to increase the volcano’s alert level on two occasions, from the level three to the highest, the authority reported. No deaths or injuries have been announced.
Over three hundred residents in the three villages most endangered in the district of Lumajang region were relocated to official safe havens, according to a spokesperson for the national emergency management body.
He stated that increased activity of the mountain on the afternoon of Wednesday led officials to expand the danger zone to 5 miles from the crater. Residents were urged to stay clear from an zone along the Kobokan River, which is the route of the molten rock stream, as scorching gases flowed down the volcano's sides.
Videos on social media showed a thick plume of ash moving through a wooded ravine to a waterway beneath a bridge. Residents, some with faces smeared with volcanic dust and rain, escaped to temporary shelters or departed for alternative secure locations.
Local media reported that authorities were facing challenges to rescue about 178 individuals trapped on the 12,060-foot mountain at the Ranu Kumbolo monitoring post. The group included 137 hikers, 15 porters, seven escorts and six tourism officials, according to an spokesperson with the protected area.
“They remain secure at the Ranu Kumbolo station,” an official stated in a video statement. He noted the post was located 4.5km from the crater on the north side of the mountain, which is not in the path of the hot cloud flow that was observed moving to the southeast direction. Inclement conditions and precipitation forced the team to spend the night there, he added.
The volcano, also known as Great Mountain, has burst numerous times in the past 200 years. Still, as is the case with many of the 129 live volcanoes in Indonesia, thousands of people continue to live on its fertile slopes.
Semeru’s previous significant explosion was in December 2021, when 51 people were lost their lives and hundreds others were injured and settlements were submerged in thick mud. The eruption forced the relocation of over ten thousand people from their houses.
The country, an archipelago of more than 280 million inhabitants, sits along the Pacific “ring of fire”, a curved series of fault lines, and is susceptible to seismic events and volcanism.