New observations in Central Italy of groundwater responses to the worldwide seismicity.

ABSTRACT: Chemical and physical responses of groundwater to seismicity have been documented for thousands of years. Among the waves produced by earthquakes, Rayleigh waves can spread to great distances and produce hydrogeological perturbations in response to their passage. In this work, the groundwater level, which was continuously recorded in a monitoring well in Central Italy between July 2014 and December 2019, exhibited evident responses to dynamic crustal stress. In detail, 18 sharp variations of the groundwater level due to worldwide M_w ≥ 6.5 earthquakes were observed. Apart from earthquakes that occurred in Papua New Guinea and those with a hypocentral depth > 150 km, all far away M_w ≥ 7.6 earthquakes produced impulsive oscillations of groundwater. As the earthquake magn

SUBMITTER: Barberio MD 

PROVIDER: S-EPMC7575607 | biostudies-literature | 2020 Oct

REPOSITORIES: biostudies-literature