Logo link to homepage

Report on Lewotolok (Indonesia) — 26 April-2 May 2023


Lewotolok

Smithsonian Institution / US Geological Survey
Weekly Volcanic Activity Report, 26 April-2 May 2023
Managing Editor: Sally Sennert.

Please cite this report as:

Global Volcanism Program, 2023. Report on Lewotolok (Indonesia) (Sennert, S, ed.). Weekly Volcanic Activity Report, 26 April-2 May 2023. Smithsonian Institution and US Geological Survey.

Weekly Report (26 April-2 May 2023)

Lewotolok

Indonesia

8.274°S, 123.508°E; summit elev. 1431 m

All times are local (unless otherwise noted)


PVMBG reported that the eruption at Lewotolok was ongoing during 26 April-2 May. Almost daily white-and-gray plumes rose as high as 500 m above the summit and drifted NW, W, and SW. White gas-and-steam plumes rose 300 m and drifted SW on 28 April. Crater incandescence was visible in webcam images posted with the 27 April report. The Alert Level remained at 2 (on a scale of 1-4) and the public was warned to stay 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)