Soputan Volcano in north Sulawesi erupts five days after the neighbouring magnitude-7.5 Palu earthquake – Was the eruption triggered by the earthquake?
An eruption from Soputan volcano commenced at 08:47 local time on 3 October 2018, producing a dense ash plume that rose 4 kilometres (km) above the summit and drifted west and northwest. This event occurred five days after the magnitude-7.5 Palu earthquake that caused a disastrous tsunami. The epicentre was located at a depth of 10 km and about 600 km to the west-southwest of Soputan volcano.
Could the eruption have been triggered by the earthquake?
Earthquakes and volcanoes are intimately linked through plate tectonics. Examples of earthquake-volcano interactions namely include the 1975 eruption of Kīlauea...