Rising SO2 gas output, volcanic tremor at White Island could suggest eruptive activity more likely
31 Oct 2019
Stuff.co.nz
Sulpur dioxide gas output and volcanic tremor levels at Whakaari/White Island are at the highest levels since 2016, possibly suggesting the volcano is entering a period where an eruption is more likely. SO2 gas at volcanoes originates from magma (molten".