Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item:

Authors: Pedrazzi, D.*
Cappello, A.*
Zanon, V.*
Del Negro, C.*
Title: Impact of effusive eruptions from the Eguas–Carvão fissure system, São Miguel Island, Azores Archipelago (Portugal)
Title of journal: Journal of volcanology and geothermal research
Series/Report no.: /291 (2015)
Publisher: Elsevier Science Limited
Issue Date: 15-Jan-2015
DOI: 10.1016/j.jvolgeores.2014.12.012
Keywords: Basaltic eruptions; Numerical simulations; Eruptive scenario; Lava flow hazard; Volcanic ris
Abstract: The hazard and risk posed by future effusive eruptions from the Éguas–Carvão fissure system in São Miguel Island (Azores Archipelago) are assessed. This fissure system, located ~ 13 km from the town of Ponta Delgada and its international airport, was the only site in the whole island to be characterized by recurrent basaltic eruptions over the past 5000 yr. Here we report on the stratigraphic record of these Holocene eruptions, with special mention to both areas and volumes of deposits, and eruptive styles and recurrence. These basic data then are used to constrain numerical simulations of lava flow paths using the MAGFLOW model, after which hazard zones of possible future events are proposed. The lava flow risk is evaluated by combining the hazard with the exposed value, referred to the population, infrastructures and land use. These results are shown in two distinct maps, where the areas most prone to lava flow inundation and the extent of damages in case of a future effusive eruption are identified. We find that lava flows issuing from the Éguas–Carvão fissure system may be a threat to the villages of Feteiras, Capelas and Santo Antonio. Although this study was conducted on the Éguas–Carvão fissure system, the approach used can be applied to the whole São Miguel Island.
Appears in Collections:05.02.03. Volcanic eruptions
Papers Published / Papers in press

Files in This Item:

File SizeFormatVisibility
1-s2.0-S0377027314003862-main.pdf5.71 MBAdobe PDFonly authorized users View/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Share this record




Stumble it!



Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA