Persistent CO₂ emissions and hydrothermal unrest following the 2015 earthquake in Nepal.

ABSTRACT: Fluid-earthquake interplay, as evidenced by aftershock distributions or earthquake-induced effects on near-surface aquifers, has suggested that earthquakes dynamically affect permeability of the Earth's crust. The connection between the mid-crust and the surface was further supported by instances of carbon dioxide (CO₂) emissions associated with seismic activity, so far only observed in magmatic context. Here we report spectacular non-volcanic CO₂ emissions and hydrothermal disturbances at the front of the Nepal Himalayas following the deadly 25 April 2015 Gorkha earthquake (moment magnitude M_w = 7.8). The data show unambiguously the appearance, after the earthquake, sometimes with a delay of several months, of CO₂ emissions at several sites sepa

SUBMITTER: Girault F 

PROVIDER: S-EPMC6063904 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature