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Report on Lewotolok (Indonesia) — 26 May-1 June 2021


Lewotolok

Smithsonian / US Geological Survey Weekly Volcanic Activity Report,
26 May-1 June 2021
Managing Editor: Sally Kuhn Sennert

Please cite this report as:

Global Volcanism Program, 2021. Report on Lewotolok (Indonesia). In: Sennert, S K (ed.), Weekly Volcanic Activity Report, 26 May-1 June 2021. Smithsonian Institution and US Geological Survey.

Weekly Report (26 May-1 June 2021)

Lewotolok

Indonesia

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

All times are local (unless otherwise noted)


PVMBG reported that white-and-gray plumes from Lewotolok rose as high as 1 km and drifted W and E during 27-28 and 30-31 May. Rumbling was sometimes heard. Crater incandescence was visible on 31 May. 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.

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)