Although inclement weather sometimes obscured views of Lokon-Empung’s Tompaluan Crater, PVMBG reported that during 3-10 December observers at the post in Kakaskasen Tomohon (North Sulawesi, 4 km from the crater), saw white plumes rising as high as 400 m above the crater.
Seismicity fluctuated, but the seismic spectral amplitude measurement (SSAM) had shown a gradually increasing trend over the previous 3-4 months. The Alert Level remained at 3 (on a scale of 1-4). Residents and tourists were reminded not to approach the crater within a radius of 2.5 km.
December 19, 2015. Lokon–Empung, Sulawesi, Indonésia:
Elevation 1580 m
Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi , GVP .
Photo : Photovolcanica