PVMBG reported that the eruption at Lewotolok continued during 12-18 July. Daily dense white steam-and-gas plumes rose as high as 500 m above the summit and drifted NW, W, and SW. A small plume possibly containing ash was visible in a posted webcam image from 1101 on 13 July. Incandescence at the summit was visible in webcam images from 2129 on 12 July, 1957 on 15 July, and 2205 on 16 July. 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)