Jakarta –
Mount Semeru experienced an eruption today and has reached level IV or alert status. The National Disaster Management Agency (BNPB) said that three villages in Lumajang Regency were affected by this eruption.
“There are three villages in two sub-districts that are affected. This area is in Lumajang Regency, East Java. These villages are Supit Urang Village and Oro-Oro Ombo Village in Pronojiwo District, and Penanggal Village in Candipuro District,” said Head of the BNPB Disaster Data, Information and Communication Center Abdul Muhari to journalists, Wednesday (19/11/2025).
Evacuation teams have also been deployed to locations affected by the eruption. Hundreds of residents have now taken refuge in safe places.
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“Temporary data is that 300 residents were temporarily displaced in two places,” said Abdul.
The two evacuation locations are at the Oro-oro Ombo Village Hall. At this location there are 200 refugees. Meanwhile, another refugee camp is at SD 2 Supiturang with the number of refugees reaching 100 people.
“Apart from that, a number of residents were evacuated to the Penanggal Village Hall. However, the BPBD is still collecting data in the field,” said Abdul.
Mount Semeru, which is on the border of Lumajang Regency and Malang Regency, East Java Province, was observed erupting on Wednesday afternoon (19/11), at around 14.13 WIB. Based on information from the Center for Volcanology and Geological Disaster Mitigation (PVMBG), the sliding distance of hot clouds during the eruption was less than 13 km.
Viewed visually, hot cloud avalanches were observed with a sliding distance of 13 km towards the southeast and south. Apart from that, one hot cloud was also observed less than 13 km southeast of Besuk Kobokan.
Volcano authority PVMBG recommends several steps. First, do not carry out any activities in the southeast sector along Besuk Kobokan, as far as 20 km from the peak (center of the eruption). Beyond this distance, people do not carry out activities within 500 meters of the river bank (river border) along Besuk Kobokan because they have the potential to be affected by the expansion of hot clouds and lava flows.
The public is also temporarily prohibited from carrying out activities within an 8 km radius of the crater or peak of Mount Semeru because it is prone to the danger of throwing stones (flare).
Apart from that, residents are asked to be aware of the potential for hot clouds, lava avalanches and lahars along rivers/valleys that originate at the peak of Mount Semeru, especially along Besuk Kobokan, Besuk Bang, Besuk Kembar and Besuk Sat as well as the potential for lahars in small rivers which are tributaries of Besuk Kobokan.
(ygs/jesus)
