Research paper
Acoustic noise and temperature monitoring of the Crater Lake of Mount Ruapehu Volcano

https://doi.org/10.1016/0377-0273(95)00060-7Get rights and content

Abstract

Acoustic signals in Ruapehu Crater Lake, which are now being telemetered via a satellite transmission system, show promise as a possible precursor of increased volcanic activity from Ruapehu. The start of a recent period of rapid heating of Crater Lake was preceded by low-frequency (2 Hz) acoustic signals. These accompanied similar frequency seismic signals, but seemed to be produced independently. Audio-frequency (350–3000 Hz) acoustic noise also showed a very clear peak shortly before the lake temperature started to rise.

References (12)

There are more references available in the full text version of this article.

Cited by (18)

  • Engineering geology model of the Crater Lake outlet, Mt. Ruapehu, New Zealand, to inform rim breakout hazard

    2018, Journal of Volcanology and Geothermal Research
    Citation Excerpt :

    Crater Lake has frozen over on two occasions (Park, 1887; Thomson, 1926). The Crater Lake experiences semi-regular heating cycles (Christenson and Wood, 1993; Hurst and Vandemeulebrouck, 1996; Werner et al., 2006; Christenson et al., 2010), controlling when the lake freezes over, and allowing this glacial lobe to rest above the outlet. The position of the glacier at this time is further supported by the outlet being described as an “ice tunnel” and the origin of the 1953 lahar (Fig. A.4) (O'Shea, 1954).

  • Hydroacoustic noise precursors of the 1990 eruption of Kelut Volcano, Indonesia

    2000, Journal of Volcanology and Geothermal Research
    Citation Excerpt :

    In their study, signals between 0.5 and 2 Hz were recorded and attributed to microseisms, local seismic events, and movement of magma or hydrothermal fluids, whereas a powerful emission around 40 Hz was ascribed to the jet noise generated by hot water flow through a hydrothermal chimney. More recently, for the second hydroacoustic crater lake experiment ever, the measurements in the Ruapehu Crater lake, New Zealand, during a warming up of the lake showed that the low-frequency seismic and acoustic signals are associated with the onset of a heat transfer process in the lake, several days before the rise of its temperature (Hurst and Vandemeulebrouck, 1996). In Appendix A, we provide a review of the most probable sources of underwater sound in a crater lake.

  • Earthquake swarms to the west of Mt Ruapehu preceding its 1995 eruption

    1999, Journal of Volcanology and Geothermal Research
  • Seismicity of Ruapehu volcano, New Zealand, 1971-1996: A review

    1999, Journal of Volcanology and Geothermal Research
View all citing articles on Scopus
View full text