Forecasting Etna eruptions by real-time observation of volcanic gas composition

被引：244

作者：

Aiuppa, Alessandro ^{[1
,2
]}

Moretti, Roberto ^{[3
]}

Federico, Cinzia ^{[2
]}

Giudice, Gaetano ^{[2
]}

Gurrieri, Sergio ^{[2
]}

Liuzzo, Marco ^{[2
]}

Papale, Paolo ^{[4
]}

Shinohara, Hiroshi ^{[5
]}

Valenza, Mariano ^{[1
]}

机构：

[1] Univ Palermo, Dipartimento CFTA, I-90123 Palermo, Italy

[2] Ist Nazl Geofis & Vulcanol, Sezione Palermo, I-90146 Palermo, Italy

[3] Ist Nazl Geofis & Vulcanol, Sezione Osservatorio Vesuviano, I-80124 Naples, Italy

[4] Ist Nazl Geofis & Vulcanol, Sezione Pisa, I-56123 Pisa, Italy

[5] Natl Inst Adv Ind Sci & Technol, Geol Survey Japan, Tsukuba, Ibaraki 3058567, Japan

来源：

GEOLOGY | 2007年 / 35卷 / 12期

关键词：

Mount Etna; volcanoes; degassing; volatiles; gas plumes; volcanogenic processes;

D O I：

10.1130/G24149A.1

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

It is generally accepted, but not experimentally proven, that a quantitative prediction of volcanic eruptions is possible from the evaluation of volcanic gas data. By discussing the results of two years of real-time observation of H2O, CO2, and SO2 in volcanic gases from Mount Etna volcano, we unambiguously demonstrate that increasing CO2/SO2 ratios can allow detection of the pre-eruptive degassing of rising magmas. Quantitative modeling by the use of a saturation model allows us to relate the pre-eruptive increases of the CO2/SO2 ratio to the refilling of Etna's shallow conduits with CO2-rich deep-reservoir magmas, leading to pressurization and triggering of eruption. The advent of real-time observations of H2O,CO2, and SO2, combined with well-constrained models of degassing, represents a step forward in eruption forecasting.

引用

页码：1115 / 1118

页数：4

共 32 条

[1] Rates of carbon dioxide plume degassing from Mount Etna volcano [J].