Tambora volcano (Sumbawa Island, Indonesia) - Smithsonian / USGS Weekly Volcanic Activity Report for 3 April-9 April 2013 (New Activity / Unrest)

Based on visual observation and seismic data, CVGHM reported an increase in activity at Tambora that started in April. Therefore, on 30 August, the Alert Level was raised to 2 (on a scale of 1-4). During 30 August-8 September seismicity continued to increase. ... Read all

Tambora Vulkan in Indonesien ist erste Anzeichen von Leben zu zeigen. Seit April dieses Jahres gab es zeitweise Schwärme von kleinen Erdbeben, die sich gegen Ende August wiederholt. Aktivität haben sich langsam erhöht, haben Dampfwolken beobachtet steigende bis an den Rand der Caldera und das Erdbeben-Aktivität hat sich ein wenig hob, auch. Der Alarm Ebene bis 2 angehoben worden. ... Read all

Based on visual observation and seismic data, CVGHM reported an increase in activity at Tambora during the previous five months. Ground-based observers at an observation post in Tambora village noted dense white plumes rising 50-75 m above the caldera rim during April and June, but no plumes during May or July. In August dense white plumes rose 20 m above the caldera rim. ... Read all