PVMBG reported that the eruption at Lewotolok continued during 16-25 June. White-to-gray emissions rose as high as 400 m above the summit and mainly drifted W and NW during 16-22 June; an eruptive event was recorded by the seismic network during the week but not visually observed. The number of earthquakes decreased, and the average amplitude of continuous tremor signals also declined. Both shallow and deep earthquakes were recorded but they were not significant. Lava flows on the S, SE, and W flanks continued to be stable. Deformation data indicated deflation. At 1600 on 23 June the Alert Level was lowered to 2 (on a scale of 1-4) and the public was warned to stay 2 km away from the vent and 2.5 km away from the vent on the S, SE, and W flanks. White plumes rose as high has 600 m above the summit and drifted W, NW, E, and SE during 23-25 June.

Geological Summary. The Lewotolok (or Lewotolo) stratovolcano occupies the eastern end of an elongated peninsula extending north into the Flores Sea, connected to Lembata (formerly Lomblen) Island by a narrow isthmus. It is symmetrical when viewed from the north and east. A small cone with a 130-m-wide crater constructed at the SE side of a larger crater forms the volcano's high point. Many lava flows have reached the coastline. Eruptions recorded since 1660 have consisted of explosive activity from the summit crater.

Sources: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM), Antara News