Infrasonic tremor observed at Kīlauea Volcano, Hawai'i

M. Garcés, A. Harris, C. Hetzer, J. Johnson, S. Rowland, E. Marchetti, P. Okubo

doi:10.1029/2003gl018038

Infrasonic tremor observed at Kīlauea Volcano, Hawai'i

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M. Garcés

HIGP, SOEST University of Hawai'i at Mānoa Hawai'i USA
A. Harris

HIGP, SOEST University of Hawai'i at Mānoa Hawai'i USA
C. Hetzer

HIGP, SOEST University of Hawai'i at Mānoa Hawai'i USA
J. Johnson

HIGP, SOEST University of Hawai'i at Mānoa Hawai'i USA
S. Rowland

HIGP, SOEST University of Hawai'i at Mānoa Hawai'i USA
E. Marchetti

Dipartimento di Scienze della Terra Università di Firenze Firenze Italy
P. Okubo

U.S. Geological Survey, Hawaiian Volcano Observatory, Hawai'i Volcanoes National Park Hawai'i USA

書誌事項

公開日: 2003-10

権利情報

http://onlinelibrary.wiley.com/termsAndConditions#vor

DOI

10.1029/2003gl018038

公開者: American Geophysical Union (AGU)

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説明

<jats:p>Infrasonic array data collected at Kīlauea Volcano, Hawai'i, during November 12–21, 2002 indicate that the active vents and lava tube system near the Pu'u 'Ō'ō vent complex emit almost continuous infrasound in the 0.3–10 Hz frequency band. The spectral content of these infrasonic signals matches well that of synchronous seismic tremor. In sites protected from wind noise, significant signal to noise ratios were recorded as far as ∼13 km from the crater of Pu'u 'Ō'ō. The infrasonic recordings suggest that one or more tremor sources may be close to the surface. In addition, these results demonstrate that adequate site and instrument selections for infrasonic arrays are essential in order to obtain consistent and reliable infrasonic detections.</jats:p>