Mount Anak Krakatau erupted 56 times on Saturday, September 22, 2018, the Meteorology, Climatology, and Geophysics Agency (BMKG) reported September 23. The alert level remains at Level II (Waspada/Caution).
The last VONA was issued at 22:56 UTC, September 21. It was related to an eruption at 22:48 UTC, recorded with a seismogram with a maximum amplitude of 45 mm. The eruption lasted about 115 seconds, producing ash column that rose up to 538 m (1 722 feet) above sea level, drifting south.