PVMBG reported that the eruption at Lewotolok continued during 30 August-5 September. Almost daily white steam-and-gas plumes rose as high as 700 m above the summit and drifted W and NW. White-and-gray ash plumes rose as high as 700 m and drifted E, SW, and W on 1 September. A Volcano Observatory Notices for Aviation (VONA) described an ash plume rising 500 m and drifting SE on 3 September; a webcam image showed incandescent material at the crater and on the upper flank. The Alert Level remained at 2 (on a scale of 1-4) and the public was warned to stay at least 2 km away from the summit crater.

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.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)