A pyroclastic flow emitted by Mount Semeru in Lumajang District, East Java Province, on Thursday morning travelled a distance of 4.5 kilometers (km) toward Besuk Kobokan River, indicating increased volcanic activity.
“At …

A pyroclastic flow emitted by Mount Semeru in Lumajang District, East Java Province, on Thursday morning travelled a distance of 4.5 kilometers (km) toward Besuk Kobokan River, indicating increased volcanic activity.
“At …