Martyn Unsworth is travelling to Chile to study a restless volcano which appears to be on the verge of eruption. But the Laguna del Maule volcanic field in the Southern Andes has only been inhaling — for five years in a row. The restless deposit of magma provides a major scientific opportunity: to explore a volcano before it erupts. Laguna del Maule — composed of domes and ash deposits that centre around a lake that straddles the Chilean-Argentine border — looks nothing like a classic, cone-shaped volcano. University of Alberta Geophysicst Martyn Unsworth at Laguna del Maule, Chile.

Source: CBC News January 31, 2017 16:19 UTC