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 (ScHICK et 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.
|Titolo:||Features of volcanic tremors on Mt. Etna (Sicily) during the march-august 1983 eruption|
|Data di pubblicazione:||1984|
|Appare nelle tipologie:||1.1 Articolo in rivista|