A strong magmatic eruption occurred at G. Anak Krakatau on Friday April 10, 2020 from 10:35 p.m. western Indonesia time, the height of the dark ash column being observed ± 500 m above the summit ( ± 500 m above sea level).
In a first report, the PVMBG reports its recording on a seismograph with a maximum amplitude of 40 mm and a duration of 2284 seconds.
The local webcam showed images from 10:35 p.m. on April 10 until the early hours of April 11. The observatory's webcam, located 43 km on the coast, shows significant fountaining.
Anak Krakatau - eruption 10.04.2020 - Doc. Statusku WA
According to VAAC Darwin, which issued a red aviation code, the plume of ash and sulfur dioxide has reached an altitude of 15 km, moving west northwest. The satellites have registered a strong hot spot.
On April 11, two brief eruptions occurred, according to Dr. Devy Syahbana, and since 9:26 am WIB, a significant decrease in activity was visible on the seismogram.
NB: on social networks, many images do NOT illustrate this eruptive phase of April 10-11, 2020.
The activity level is always at 2 / waspada, with an unauthorized area of 2 km radius around the crater.
It is the strongest eruptive phase since the phreatomagmatic activity of December 22, 2018, and the partial collapse of the cone responsible for the deadly tsunami.
Sources: Magma Indonesia, PVMBG, VAAC Darwin