Mount Semeru experiences 16 eruption earthquakes, lava warning

TIME.CO, JakartaSemeru Mountain which is located on the border between Lumajang Regency and Malang, East Java, is still experiencing an earthquake or eruption on Wednesday morning, September 20, 2023.

Based on a written report from the officer of the Mount Semeru observation post on Mount Sawur, Lumajang Regency, Mukdas Sofian noted that 16 seismic eruptions with an amplitude of 12-20 mm occurred during the observation period and an earthquake duration of 55-110 seconds. 20 September 2023 00.00-06.00 WIB.

“Mount Semeru experienced a blast with an amplitude of 3 mm and an earthquake duration of 55 seconds,” he told Lumajang.

Besides that, the Semeru asset also experienced one deep volcanic earthquake with an amplitude of 18 mm and three distant tectonic earthquakes with an amplitude of 2-22 mm.

“For visual observation, Mount Semeru is clearly visible. Smoke from the crater is not observed. The weather is clear to cloudy, the wind is light in the north,” he said.

Mount Semeru still has the alert status or level III, therefore the public is advised to respect the recommendations of the Center for Volcanology and Geological Disaster Mitigation (PVMBG), i.e. the public is prohibited from carrying out any activities in the southern sector. eastern along Besuk Kobokan up to 13 km from the summit (center of the eruption).

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People are prohibited from carrying out activities near Mount Semeru

Beyond this distance, people should not carry out activities within 500 meters of the riverbank (river boundary) along the Besuk Kobokan, because they may be affected by the expansion of hot clouds and lava flows up to a distance of 17 km from the peak.

The public is also prohibited from carrying out activities within a 5 km radius of the crater/top of the Mount Semeru volcano, because it is exposed to the danger of stone throwing (flares).

In addition to this, you need to be aware of the potential for hot cloud avalanches (APGs), lava avalanches and lahars along rivers/valleys originating at Semeru Peak, particularly along Besuk Kobokan, Besuk Bang, Besuk Kembar and Besuk. Sat, as well as potential lava in small rivers tributaries of the Besuk Kobokan.

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