PVMBG reported that a brief explosive event at Anak Krakatau was recorded at 0026 on 14 February, though weather conditions prevented clear views of the event.
During 15-17 February diffuse white plumes rose 50 m above the summit.
At 1402 on 18 February another short-lived event produced an ash plume that rose about 500 m above the summit and drifted S and SW.
The Alert Level remained at 3 (on a scale of 1-4), and residents were warned to remain outside of the 5-km radius hazard zone from the crater.
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)