Can coseismic static stress changes sustain postseismic degassing?

Abstract Earthquakes can trigger increased degassing in hydrogeological systems. Many of these systems return to preseismic conditions after months, but sometimes postseismic lasts for years. The factors controlling such long-lasting are poorly known. I explored the potential role diverse triggering mechanisms (i.e., dynamic and static stress changes, volumetric strain) three large earthquakes that induced (the Wenchuan [China], Maule [Chile], Gorkha [Nepal] earthquakes). lessons from this study suggest respond various ways, different causal play a role. Persistent CO2 flux hot springs has been documented earthquake. These had their feeder dominantly unclamped, suggesting sufficiently normal changes may sustain late degassing. results twofold: (1) they show spatial correlation between unclamping gas flow, (2) provide an explanation protracted