Lewotobi is a twin volcano located in the southeastern part of the island of Flores, Indonesia, it has two peaks; the Lewotobi Laki-laki (Male Lewotobi) and Lewotobi Perempuan (Female Lewotobi) stratovolcanoes, the more active Lewotobi Laki-laki is about 2.1 km northwest of the taller Lewotobi Perempuan.

On 21 March, Lewotobi Laki-laki erupted, sending ash clouds over 8 km high. Authorities raised the alert to the highest level, and Jetstar canceled some flights to Bali. The eruption followed smaller ones since 13 March. One person was injured during the evacuations, although the details reported were unclear. Bali airport remained open, but seven international flights were canceled. The geological agency warned of lava floods and continued activity. Lewotobi Laki-laki erupted again on 18 May, prompting authorities to raise Indonesia’s highest volcanic alert level. Lewotobi Laki-laki erupted on 17 June, sending ash clouds 11 km high, prompting authorities to raise Indonesia’s highest volcanic alert level again, with a plume visible from a distance of 90 km to 150 km. Multiple flights were cancelled due to the amount volcanic ash released into the atmosphere. Two major eruptions occurred on 7 July, ejecting debris as far as 8 km away and producing pyroclastic flows that reached 5 km from the crater and an ash cloud 13 km high. At least 24 flights were cancelled in Bali.

Alert raised to the highest level after Indonesia’s Mount Lewotobi Laki Laki volcano erupts

Indonesia volcano spews ash more than 6 miles into sky, dozens of Bali flights canceled

Lewotobi – Pusat Vulkanologi dan Mitigasi Bencana Geologi