Deep CO2 emissions characterize many nonvolcanic, seismically active regions worldwide,
and the involvement of deep CO2 in the earthquake cycle is now generally recognized …

Fluids supplied by stored magma at depth are causal factors of volcanic unrest, as they can
cause pressurization/heating of hydrothermal systems. However, evidence for links between …

This paper reports a review on the relationship between seismic activity and the emissions
of CO2 and radon. Direct, indirect and sampling methods are mainly employed to measure …

The spatial and temporal evolutionary mechanisms of volatile components at plate
boundaries and their potential as earthquake precursors are not well understood. Based on …

Increasing seismic activity due to fluid injections for oil and gas production may be
contributing to leakage along non-producing oil and gas wells and emitting methane, a …

Although many mechanisms of earthquake-induced hydrological response have been
proposed in recent decades, the origins of these responses remain enigmatic, and a …

Fluid–earthquake interplay, as evidenced by aftershock distributions or earthquake-induced
effects on near-surface aquifers, has suggested that earthquakes dynamically affect …

An integrated approach that combines geophysical surveys and numerical simulations is
proposed to study the processes that govern the fluid flow along active fault zones. It is …

The gas compositions (He, H2, CO2, CH4, Ar and N2) and isotope ratios (3He/4He and
δ13C) were yearly investigated from April 2010 to April 2019 at the Luojishan spring located …

We correlated carbon dioxide (CO 2) time series detected at the Gallicano site in Tuscany,
Italy, with low-magnitude earthquakes occurred in the surrounding area between 2017 and …