Changes in seismic anisotropy after volcanic eruptions: Evidence from Mount Ruapehu

被引：92

作者：

Miller, V ^{[1
]}

Savage, M ^{[1
]}

机构：

[1] Victoria Univ Wellington, Inst Geophys, Wellington, New Zealand

来源：

SCIENCE | 2001年 / 293卷 / 5538期

关键词：

D O I：

10.1126/science.1063463

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The eruptions of andesite volcanoes are explosively catastrophic and notoriously difficult to predict. Yet changes in shear waveforms observed after an eruption of Mount Ruapehu, New Zealand, suggest that forces generated by such volcanoes are powerful and dynamic enough to locally overprint the regional stress regime, which suggests a new method of monitoring volcanoes for future eruptions. These results show a change in shear-wave polarization with time and are interpreted as being due to a localized stress regime caused by the volcano, with a release in pressure after the eruption.

引用

页码：2231 / 2233

页数：3

共 31 条

[21]

NUTTLI OW, 1962, B SEISMOL SOC AM, V51, P237

[22] Tectonic implications of the earthquake swarm of 1997 in the Michoacan Triangle, Mexico [J].

Pacheco, JF ;

Valdés-González, C ;

Delgado, H ;

Singh, SK ;

Zuñiga, FR ;

Mortera-Gutiérrez, CA ;

Santoyo, MA ;

Domínguez, J ;

Barrón, R .

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES, 1999, 12 (06) :567-577

[23] THE ROLE OF MAGMA OVERPRESSURE IN SUPPRESSING EARTHQUAKES AND TOPOGRAPHY - WORLDWIDE EXAMPLES [J].

PARSONS, T ;

THOMPSON, GA .

SCIENCE, 1991, 253 (5026) :1399-1402

[24] SHEAR-WAVE SPLITTING IN THE ANZA SEISMIC GAP, SOUTHERN-CALIFORNIA - TEMPORAL VARIATIONS AS POSSIBLE PRECURSORS [J].

PEACOCK, S ;

CRAMPIN, S ;

BOOTH, DC ;

FLETCHER, JB .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1988, 93 (B4) :3339-3356

[25] How are vertical shear wave splitting measurements affected by variations in the orientation of azimuthal anisotropy with depth? [J].

Saltzer, RL ;

Gaherty, JB ;

Jordan, TH .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2000, 141 (02) :374-390

[26] SHEAR-WAVE ANISOTROPY AND STRESS DIRECTION IN AND NEAR LONG VALLEY CALDERA, CALIFORNIA, 1979-1988 [J].

SAVAGE, MK ;

PEPPIN, WA ;

VETTER, UR .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1990, 95 (B7) :11165-11177

[27] SHEAR-WAVE ANISOTROPY OF ACTIVE TECTONIC REGIONS VIA AUTOMATED S-WAVE POLARIZATION ANALYSIS [J].

SAVAGE, MK ;

SHIH, XR ;

MEYER, RP ;

ASTER, RC .

TECTONOPHYSICS, 1989, 165 (1-4) :279-292

[28] Seismicity of Ruapehu volcano, New Zealand, 1971-1996: a review [J].

Sherburn, S ;

Bryan, CJ ;

Hurst, AW ;

Latter, JH ;

Scott, BJ .

JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, 1999, 88 (04) :255-278

[29]

SILVER PG, 1991, J GEOPHYS RES-SOL EA, V96, P16429, DOI 10.1029/91JB00899

[30]

TAPLEY WC, 1992, SAC2000 COMMAND REFE

← 1 2 3 4 →