Report on Lewotolok (Indonesia) — 12 October-18 October 2022
Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
12 October-18 October 2022
Managing Editor: Sally Kuhn Sennert
Please cite this report as:
Global Volcanism Program, 2022. Report on Lewotolok (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 12 October-18 October 2022. Smithsonian Institution and US Geological Survey.
8.274°S, 123.508°E; summit elev. 1431 m
All times are local (unless otherwise noted)
PVMBG reported that the Strombolian eruption at Lewotolok continued during 11-18 October. White emissions rose as high as 500 m above the summit almost daily and drifted in multiple directions. At 0351 on 14 October an eruptive event produced a dense gray ash plume that rose about 1.2 km above the summit and drifted SW. The Alert Level remained at 3 (on a scale of 1-4) and the public was warned to stay 3 km away from the summit crater and 4 km away from the crater on the SE flank.
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)