VOLCANIC TREMOR AT MOUNT ETNA (JANUARY 1984 MARCH 1985) - ITS RELATIONSHIP TO THE ERUPTIVE ACTIVITY AND MODELING OF THE SUMMIT FEEDING SYSTEM

被引：20

作者：

GRESTA, S

MONTALTO, A

PATANE, G

机构：

[1] Istituto di Scienze della Terra, Università di Catania, Catania

[2] Istituto Internazionale di Vulcanologia, CNR, Catania

来源：

BULLETIN OF VOLCANOLOGY | 1991年 / 53卷 / 04期

关键词：

D O I：

10.1007/BF00414527

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Spectral analyses of volcanic tremor at Etna during January 1984-March 1985, have been performed and the relationship between tremor energy and observed volcanic phenomena have been examined. The highest energy levels have been observed during the paroxysmal phases of eruptions, whereas a gradual decrease was linked to the lowering of eruptive activity. Amplitude variations with time of some spectral frequency peaks (0.95, 1.20, 1.45, 1.65, 1.80 and 2.40 Hz) have been compared with volcanic activity at the summit craters, and on the basis of these results a new schematic diagram for the feeding system of the summit vents is proposed.

引用

页码：309 / 320

页数：12

共 21 条

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