Extensional strain recorded by two underground Michelson-like geodetic interferometers (GAL16 and LAB780), located close to the Laboratorio Subterraneo de Canfranc (Central Pyrenees, Spain). Low-passed data, decimated at 600-s sampling rate.
EarthScope Consortium operates the
NSF Geodetic Facility for the Advancement of Geoscience (GAGE)
and NSF Seismological Facility for the Advancement of Geoscience (SAGE).
Any opinions, findings and conclusions, or recommendations expressed
in this material do not necessarily reflect the views of the
U.S. National Science Foundation.