Features of volcanic tremors on Mt. Etna (Sicily) during the March–August 1983 eruption期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Features of volcanic tremors on Mt. Etna (Sicily) during the March–August 1983 eruption

Authors:	M. Cosentino S. Gresta G. Lombardo G. Patanè M. Riuscetti R. Schick A. Viglianisi

Affiliation:	(1) Istituto di Scienze della Terra, Università di Catania, Italy;(2) CNR-Istituto Internazionale di Vulcanologia, Catania, Italy;(3) Istituto di Scienze della Terra, Università di Udine, Italy;(4) Institut für Geophysik, Universität Stuttgart, FRG

Abstract:	The seismic analysis of the volcanic tremors preceding and accompanying the Etnean eruption of March–August, 1983 has shown a significant variation in the spectral content before the beginning of the eruption, the tremor peaks at 1.4 and 1.6 Hz — which might be associated with the feeding pipes of the NE crater (Schicket al., 1982a) — being the dominant feature of the spectra.A model of eruption mechanism is proposed where a feeder dyke would connect the NE crater with the effusive fracture.

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