Intense seismicity during the 2014–15 Bárðarbunga-Holuhraun rifting event, Iceland, reveals the nature of dike-induced earthquakes and caldera collapse mechanisms

• Main Authors: White, Robert, Agustsdottir, Thorbjorg, Winder, Tom, Woods, Jennifer, Greenfield, Tim, Brandsdottir, Bryndis
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley-Blackwell 2019
• Subjects: Baroarbunga; caldera collapse; rifting event; Holuhraun; earthquake source mechanisms; dike; Iceland
• Online Access: https://www.repository.cam.ac.uk/handle/1810/294700; https://doi.org/10.17863/CAM.41805

Over two weeks in August 2014 magma propagated 48km laterally from Bárðarbunga volcano before erupting at Holuhraun for 6 months, accompanied by collapse of the caldera. A dense seismic network recorded over 47,000 earthquakes before, during and after the rifting event. More than 30,000 earthquakes...