Significant eruption at Lewotobi Laki-laki volcano, Indonesia
A strong eruption occurred at Lewotobi Laki-laki volcano, Indonesia, on April 18, 2025, sending an ash cloud to approximately 9 km (30 000 feet) above sea level. The Aviation Color Code was raised from Orange to Red at 06:29 UTC.
Lewotobi Laki-laki eruption May 18, 2025. Credit: CVGHM
Lewotobi volcano in Indonesia produced a significant ash emission on May 18, 2025. The Darwin VAAC reported that volcanic ash reached an altitude of 9.1 km (30 000 feet) above sea level (a.s.l.) at 07:40 UTC, extending southeast from the summit area.
The Center for Volcanology and Geological Hazard Mitigation (PVMBG) maintains the Alert Level at III (Siaga). Residents and visitors are advised to avoid activities within a 6 km (3.7 miles) radius of the volcano’s summit.
AVISO
— Geól. Sergio Almazán (@chematierra) May 18, 2025
Entra en erupción el Monte #Lewotobi Laki Laki, en la Isla de Flores #Indonesia
Hoy mayo 18 de 2025, pulso eruptivo con alta columna de emisión, superando los 3 km de altura.#erupsi #eruption #volcano #volcán
Vía @Centinela_35 pic.twitter.com/mzrZ39Qfrt
The volcano has been exhibiting continuous activity in recent months, including a significant eruption on March 20, which sent ash plumes up to 16.2 km (53 000 feet) a.s.l. Additionally, between April 18 and 25, there were 110 recorded eruptions.
Lewotobi is a stratovolcano located in Flores, Indonesia, comprising twin peaks known as Lewotobi Laki-laki (male) and Lewotobi Perempuan (female). The volcano is known for explosive eruptions that may produce ashfall and pyroclastic flows.
Populated areas nearby include settlements in East Flores Regency, with the town of Larantuka lying approximately 40 km (25 miles) to the northeast, presenting a potential risk to residents and aviation depending on eruption intensity and prevailing winds.
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