Lokon-Empung volcano (Sulawesi, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 29 March-4 April 2017 (Continuing Activity)

Although inclement weather sometimes obscured views of Lokon-Empung's Tompaluan Crater, PVMBG reported that during 30 December-7 January observers at the post in Kakaskasen Tomohon (North Sulawesi, 4 km from the crater), saw white plumes rising as high as 250 m above the crater. Seismicity fluctuated, and was dominated by shallow volcanic earthquakes and signals indicating emissions; the number of shallow volcanic earthquakes significantly increased on 3 January. The Alert Level remained at 3 (on a scale of 1-4). ... Read all

Although inclement weather sometimes obscured views of Lokon-Empung's Tompaluan Crater, PVMBG reported that during 10-16 December observers at the post in Kakaskasen Tomohon (North Sulawesi, 4 km from the crater), saw white plumes rising as high as 150 m above the crater. Seismicity fluctuated, but the seismic spectral amplitude measurement (SSAM) showed a gradual and significant increasing trend over the previous 3-4 months. The Alert Level remained at 3 (on a scale of 1-4). ... Read all