Abstract
Rabaul tide gauge records from 1968 through 1985 give the amount of vertical movement in the northern part of Rabaul Caldera. Monthly mean sea level data were compared with other regional tide gauge stations to remove large scale oceanographic effects. No large vertical movements (> 0.3 cm/yr) were noted in this portion of the caldera. The results of sea level measurements at other points around the caldera, from 1981 through 1983 are consistent with the 1 to 10 cm of uplift observed on Matupit Island from optical leveling surveys. There was relatively little vertical movement (∼ 0.1 cm/yr) in the Vulcan area.
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References
Heming RF (1974) Geology and petrology of Rabaul Caldera, Papua New Guinea. Geological Society America Bulletin 85:1253–1264
Walker GPL, Heming RF, Sprod TJ, Walker HR (1981) Latest major eruptions of Rabaul volcano. In: Johnson RW (ed) Cooke-Ravian Volume of Volcanological Papers. Geological Survey Papua New Guinea Memoir 10, pp 181–194
Fisher NH (1939) Geology and vulcanology of Blanche Bay and the surrounding area, New Britain. Territory of New Guinea Geological Bulletin No. 1, pp 1–68
Fisher NH (1976) 1941–1942 eruption of Tavurvur volcano, Rabaul Papua New Guinea. In: Johnson RW () Volcanism in Australia. Elsevier, Amsterdam, pp 201–219
Mori J, McKee CO, Itikarai I, Lowenstein PL, de Saint Ours P, Talai B (1987) Earthquakes of the Rabaul seismo-deformational crisis, September 1983 to July 1985: Seismicity on a caldera ring-fault. Bulletin Volcanology (in press)
McKee CO, Lowenstein PL, de Saint Ours P, Talai B, Itikarai I, Mori JJ (1984) Seismic and ground deformation crises at Rabaul Caldera: Prelude to an Eruption? Bulletin Volcanologique 47:397–411
Hickey B (1975) The relationship between fluctuations in sea level, wind stress and sea surface temperatures in the equatorial Pacific. Journal Physical Oceanography 5:460–475
Wyrtki K (1984) The slope of sea level along the equator during the 1982/1983 El Nino. Journal Geophysical Research 89:10419–10424
Wyrtki K (1979) The response of sea surface topography to the 1976 El Nino. Journal Physical Oceanography 9:1223–1231
Wyrtki K (1977) Sea level during the 1972 El Nino. Journal Physical Oceanography 7:779–787
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Mori, J., McKee, C., Itikarai, I. et al. Sea level measurements for inferring ground deformations in Rabaul Caldera. Geo-Marine Letters 6, 241–246 (1986). https://doi.org/10.1007/BF02239586
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DOI: https://doi.org/10.1007/BF02239586