PVMBG reported that Lewotobi Laki-laki continued to erupt during 7-13 February. White emissions rose 30-700 m above the summit during 7 February, and 20–50 m above the summit during 8-11, and 13 February. A seismograph recorded eruptive events at 0807 on 7 February, 1858 on 9 February, 1806 on 10 February, and 1249 on 12 February. Dense, white to gray ash plumes rose 500-700 m above the summit and drifted N and NE during the eruptive events on 7 and 9 February. The Alert Level remained at 3 (the second highest level on a scale of 1-4) and the public was warned to stay outside of the exclusion zone, defined as a 4 km radius around Laki-laki crater, 5 km to the NNE, and 6 km on the NE flanks.

Geological Summary. The Lewotobi edifice in eastern Flores Island is composed of the two adjacent Lewotobi Laki-laki and Lewotobi Perempuan stratovolcanoes (the "husband and wife"). Their summits are less than 2 km apart along a NW-SE line. The conical Laki-laki to the NW has been frequently active during the 19th and 20th centuries, while the taller and broader Perempuan has had observed eruptions in 1921 and 1935. Small lava domes have grown during the 20th century in both of the summit craters, which are open to the north. A prominent cone, Iliwokar, occurs on the E flank of Perampuan.

Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi (PVMBG, also known as CVGHM)