Ambang volcano is located in northern Sulawesi. The volcano rises 750 m above lake Mooat. Five solfatara fields are located at the volcano.
Ambang volcano is possibly a twin with nearby Mt Binangunan. There are three craters with diameters of 400 m, 100 m, 100 m.
Village on the slope of Ambang volcano, Indonesia. Fissure visible in background.
Ambang volcano was raised to level 2 alert on 3rd July 2014 after an increase in shallow earthquakes. A 1.5 radius exclusion zone was placed around the crater.
Ambang volcano was climbed by John Seach during June 2013. Two areas of strongly active fumaroles were observed on a fissure zone visible on the southwest side of the volcano. The westernmost fumarole emitted a thin white plume to a height of 100 m. The easternmost fumarole emitted pulses of white vapour to a height of a few tens of metres. The summit of ambang volcano was reached after a climb from the northeast side. The summit area was heavily forested. During the descent of the volcano on the northeast flank, a strong smell of sulphur was detected but the source not identified. The high levels of fumarolic activity at Ambang volcano indicate future eruptions are possible. A magnitude 5.7 earthquake hit 116 km SSE of Ambang volcano on 27th June 2013.
A phreatic eruption was reported at Ambang volcano in 2005.