ACTNews, LUMAJANG –Mount Semeru is an active volcano that has erupted numerous times. The Center for Volcanology and Geological Hazard Mitigation (PVMBG) divided Semeru volcano-prone areas into sections.
The purpose of dividing this dangerous area is to keep people away from an eruption. Hence, there is no casualty.
Disaster-Prone Area III
Disaster-Prone Area III is an area that has the potential to be hit by hot clouds, lava flows, lava avalanches, throwing stones (incandescent), and or toxic gases. This area includes the top of the mountain and its surroundings.
Disaster-Prone Area II
Disaster-Prone Area II is an area that has the potential to be hit by hot clouds, lava flows, thrown stones, lava avalanches, heavy ash rain, hot mud rain, lava flows, and toxic gases. Disaster Prone Areas II is divided into two.
The first is an area prone to hot clouds, lava flows, lava avalanches, lava flows, and toxic gases, specifically Manjing, Gidik, Sumbersari, Pancing, Mujur, Liprak, Regoyo, Rejali, Besuk Sarat, Besuk Kembar, Besuk Kobokan, Besuk Semut, and Besuk Tunggeng Village. The second location is prone to heavy ash rain, thrown stones, and hot mud rain.
Disaster Prone Area I
This area is at risk of being hit by lahars, caused by falling material such as ash rain and acidic water. If the eruption continues, this area could be hit by the expansion of hot clouds and falling material such as heavy rain and thrown stones.
Disaster-Prone Areas I are divided into two: first, areas prone to lahars, and second, areas not prone to lahars. This area is along valleys and riverbanks, particularly those that originate in the peak area, including the villages of Manjing, Pancing, Mujur, Rejali, Glidik, Besuk Sarat, Besuk Kembar, Besuk Kobokan, and Besuk Semut. Regardless of wind direction, both areas are vulnerable to ash rain.