APPROACH TO THE VOLCANIC TREMOR BY COVARIANCE ANALYSIS - APPLICATION TO THE 1989 ERUPTION OF MT-ETNA (SICILY)

被引：16

作者：

FERRUCCI, F

GODANO, C

PINO, NA

机构：

[1] GRP NAZL VULCANOL,I-00198 ROME,ITALY

[2] IST NAZL GEOFIS,I-00161 ROME,ITALY

来源：

GEOPHYSICAL RESEARCH LETTERS | 1990年 / 17卷 / 13期

关键词：

D O I：

10.1029/GL017i013p02425

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Polarization of the tremor wavefield, recorded during three periods of the 1989 eruption of Mt. Etna at a temporary array of three-component stations, is analyzed by use of a polarization filter. The tremor shows steady horizontal, near-linear, west-east polarization at all stations. Such a behaviour, which could be coherent with a P-wavefield radiated by a vertical extended source with overall north-south alignment, excludes confinement of the source to the only active vent and is tentatively linked to activity of the main dyke-system of Mt. Etna.

引用

页码：2425 / 2428

页数：4

共 18 条

[11]

Flinn E. A.., 1965, P IEEE, V53, P1874

[12] TEMPORAL AND SPATIAL CHARACTERISTICS OF VOLCANIC TREMOR WAVE FIELDS [J].