High-Frequency Gas Monitoring Reveals Carbon Dioxide Precursor to Eruptions at Turrialba Volcano

Turrialba volcano has deposited ash on the capital city of Costa Rica and its 3 million inhabitants numerous times since 2014. In a new article in the Journal of Geophysical Research and an online Earthchem database, a DCO-DECADE team led by Maarten de Moor (National University, Costa Rica) and Alessandro Aiuppa (Palermo University, Italy) tracked changes in gas composition and flux from 2014 to present [1,2]. The near-continuous and high-frequency gas monitoring time series (Multi-GAS and scanning DOAS stations) reveal a volcano in a state of extreme turmoil, posing an increasing threat to local lives and livelihoods.

DECADERobin Dienel