CVGHM reported that on 28 February the Alert level for Lokon-Empung was lowered from 3 to 2 (on a scale of 1-4) due to a decrease in seismicity during 3-26 February, analysis of visual observations, and a lack of deformation. During 14-26 February, white plumes rose to an altitude of 1.7 km (5,600 ft) a.s.l. Visitors and tourists were prohibited from going within a 1-km radius of the crater.

Geological Summary. The Lokong-Empung volcanic complex, rising above the plain of Tondano in North Sulawesi, includes four peaks and an active crater. Lokon, the highest peak, has a flat craterless top. The morphologically younger Empung cone 2 km NE has a 400-m-wide, 150-m-deep crater that erupted last in the 18th century. A ridge extending 3 km WNW from Lokon includes the Tatawiran and Tetempangan peaks. All eruptions since 1829 have originated from Tompaluan, a 150 x 250 m crater in the saddle between Lokon and Empung. These eruptions have primarily produced small-to-moderate ash plumes that sometimes damaged croplands and houses, but lava-dome growth and pyroclastic flows have also occurred.

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