After almost a one-month relative calm period, the volcano entered an elevated eruptive stage as it produced several explosions from the cinder cone over the past two days.
Dense grey ash plumes rose to about 5,000-7,000 ft (1,500-2,100 m) elevation and dissipated towards the west and northwest direction.
However, at 09:20 local time this morning, a spectacular, increasingly rising, relatively tall (given the volcano’s 189 m in height) ash-rich column reached 2,6 km altitude drifting southwest.
The seismic network reported seismic signals with maximum amplitudes of 70 mm and a duration of 143 and 42 seconds.
The warning bulletin states that ballistic impacts of volcanic bombs and pyroclastic flows could affect an area of about 5 km distance from the active crater. Thus, people should keep the safety distance.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi volcano activity update 12 May 2023
After the explosion an hour ago, Anak Krakatau volcano increased its eruptive activity this morning pic.twitter.com/OKuDnbZRsq
— Krakatau Info (@InfoKrakatau) May 12, 2023