© ABC News
An expert has warned that Mount Slamet's seismic activity remains high although it has not spewed lava in the past month.
The Energy and Mineral Resources Ministry's Geology Agency head, Surono, said Mt. Slamet's constantly high volcanic activity made it unsafe, forcing authorities to maintain its alert status at "siaga" (level 3).
"Its activities are still high. Hundreds of tremors are recorded every 24 hours; thus, the situation is not yet safe," he told journalists in Purwokerto, Central Java, on Monday.
Surono further said that due to such fluctuating conditions, Mt. Slamet was still closed to climbers. No activity is allowed within a 4-kilometer radius of the mountain.
Mt Slamet's increased volcanic activity during the past month has caused panic among residents in five regencies located on the slope of the volcano in Central Java. Among the five regencies located on the slope of Mt. Slamet are Banyumas, Brebes, Pemalang, Purbalingga and Tegal.
Tremors and harsh sounds have emanate dozens of times a day from the volcano, which in the past has also spewed volcanic ash up to 50 km away from the peak.