JAKARTA - Mount Anak Krakatau vomited volcanic ash reaching an altitude of 150 meters above the peak. The ash column was observed to be white, gray and black.
"Currently, the condition of Mount Anak Krakatau is still on Alert Level III," said Anggi Nuryo Saputro, an officer for the preparation of the reporting of the Mount Anak Krakatau Pasauran Observation Post (GAK), Anyer, Serang Regency, Banten, Thursday, January 5, was confiscated by Antara.
Since Wednesday January 4 starting at 00.00-24.00 WIB, the mountain in the Sunda Strait waters between Banten and Lampung emits volcanic ash with a height of between 25-150 meters. However, visually the mountain with a height of 157 meters above sea level (masl) is covered in fog.
During that period, shocks occurred in the top area of Mount Anak Krakatau twice with an amplitude of 40-65 millimeters and a duration of 20-97 seconds. Meanwhile, the low frequency occurred seven times with an amplitude of 15-35 millimeters, and a duration of 8-27 seconds. Likewise, hybrid or multi-phase as many as five events with an amplitude of 25-40 millimeters, S-P-seconds and a duration of 6-11 seconds.
shallow Volcanics with five events with an amplitude of 26-44 millimeters and a duration of 6-14 seconds. While volcanic in seven events and an amplitude of 34-55 millimeters, S-P -22 seconds and a duration of 7-11 seconds. Including reports related to microtremor/tremor continuous with an amplitude of 1-30 millimeters and a dominant amp of five millimeters.
Thus, Anggi appealed to the public, tourists and climbers not to move within a five-kilometer radius of the active crater of Mount Anak Krakatau until an undetermined time limit.
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