Tree-ring width reveals the preparation of the 1974 Mt. Etna eruption.

Abstract:

:Reduced near-infrared reflectance observed in September 1973 in Skylab images of the western flank of Mt. Etna has been interpreted as an eruption precursor of the January 1974 eruption. Until now, it has been unclear when this signal started, whether it was sustained and which process(es) could have caused it. By analyzing tree-ring width time-series, we show that the reduced near-infrared precursory signal cannot be linked to a reduction in annual tree growth in the area. However, comparing the tree-ring width time-series with both remote sensing observations and volcano-seismic activity enables us to discuss the starting date of the pre-eruptive period of the 1974 eruption.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Seiler R,Houlié N,Cherubini P

doi

10.1038/srep44019

subject

Has Abstract

pub_date

2017-03-07 00:00:00

pages

44019

issn

2045-2322

pii

srep44019

journal_volume

7

pub_type

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