Mathematics – Logic
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003eaeja.....8869b&link_type=abstract
EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #8869
Mathematics
Logic
Scientific paper
On October 27, 2002, after about 15 months of quiescence Mt. Etna started a new eruption, still in progress, that has involved the forming of eruptive fracture both on south and north flanks of the volcano. A permanent tilt network that comprises nine bi-axial instruments installed in shallow boreholes and a mercury long-base guarantees continuous tilt measurements on Mt. Etna tiltmeter installed inside two 80 m orthogonal tunnels at the volcanological observatory of Pizzi Deneri (2850 m a.s.l.). All stations have registered variations between 26 and 28 of October. Minor (up to 6 microradians) changes have been recorded in the first 3 hours (between 21:00 and 24:00 GMT of 26 October) only at the southern stations; Starting from 00:00 GMT of the 27 of October more high variations (tens of microradians) have especially interested the summit area and the northern flank of the volcano. In this work we shows as tilt has been fundamental in defining space-time evolution of the complex mechanism characterizing the 2002 eruption.
Arellano Ferro Armando
Bonaccorso Alessandro
Campisi O.
Falzone Giuseppe
Gambino Salvatore
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