Evolution of earthquakes (VIDEO)
Caption
A time-lapse evolution of earthquakes in the Campi Flegrei volcanic area since 2015. On the surface, earthquake epicenters initially cluster around Pozzuoli-Pisciarelli Spring, where water ultimately accumulates downstream. Over time, earthquakes expand to cover an increasingly wider circular area within the hydrological watershed, mirroring rock and soil physics experiments from the mid-20th century in which water from a point source spreads in a roughly spherical pattern. Data are from Istituto Nazionale di Geofisica e Vulcanologia (INGV).
(Image credit: Tiziana Vanorio and INGV)
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(Image credit: Tiziana Vanorio and INGV)
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