Infrasonic tremor observed at Kīlauea Volcano, Hawai'i

Details Infrasonic tremor observed at Kīlauea Volcano, Hawai'i Infrasonic tremor observed at Kīlauea Volcano, Hawai'i

Oct 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30tsde2g&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 20, pp. SDE 2-1, CiteID 2023, DOI 10.1029/2003GL018038

Computer Science

Sound

15

Volcanology: Atmospheric Effects (0370), Volcanology: Eruption Monitoring (7280), Volcanology: Eruption Mechanisms

Scientific paper

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 'O'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 'O'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.

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