Bulletin of Volcanology

, 75:779 | Cite as

Mechanism of small vulcanian eruptions at Suwanosejima volcano, Japan, as inferred from precursor inflations and tremor signals

  • Takeshi Nishimura
  • Masato Iguchi
  • Hiroshi Yakiwara
  • Jun Oikawa
  • Ryohei Kawaguchi
  • Hiroshi Aoyama
  • Haruhisa Nakamichi
  • Yusaku Ohta
  • Takeshi Tameguri
Research Article

Abstract

We examine precursory signals of vulcanian eruptions at Suwanosejima volcano, southwest of Japan, by deploying seismic and tilt stations close to the active crater to understand the shallow conduit processes just before explosions. Vulcanian eruptions at Suwanosejima for the period from October 2009 to 2011 are often preceded by a sudden cessation of continuous tremor associated with continuous ash emissions. The amplitude of continuous tremor decreases within about 10 s, and tilt signal starts to show uplift of the active crater. Then, the pause of continuous tremor and uplift continue for about 1–2 min, and tilt amplitudes reach a few tens of nanoradians at a distance of 400 m from the active crater. As the pause time of continuous tremor before explosion becomes longer, the maximum amplitude of explosion earthquake and uplift signal become larger. Vulcanian eruptions are also observed during periods without continuous tremor. In these cases, tilt signals capture uplifts of the active crater for about 10 min before explosions and reach a few tens of nanoradians. Cessations of volcanic gas emissions are observed before some explosions during periods without continuous tremor (Mori et al. 2011). These observations suggest that pressurization in the shallow conduit is caused by an accumulation of volcanic gases and ash through the formation of ‘cap’ in the conduit, possibly composed of stiffened magma due to degassing, cooling, rheological changes, or other mechanisms.

Keywords

Vulcanian eruption Tilt Tremor Volcanic gas Magma ascent Explosion Suwanosejima 

References

  1. Aoyama H (2008) Simplified test on tilt response of CMG T seismometers. Bull Volcanol Soc Jpn 53:35–46Google Scholar
  2. Aoyama H, Oshima H (2008) Tilt change recorded by broadband seismometer prior to small phreatic explosion of Meakan-dake volcano, Hokkaido, Japan. Geophys Res Lett 35: doi:10.1029/2007GL032988
  3. Brodsky E, Kanamori H, Sturtevant B (1999) A seismically constrained mass discharge rate for the initiation of the May 18, 1980 Mount St. Helens eruption. J Geophys Res 104:29,387–29,400CrossRefGoogle Scholar
  4. Churei M, Katayama H (2006) Ground tilt change associated with the 2004 eruption at Asamayama volcano, Japan. Bull Volcanol Soc Jpn 51:91–101Google Scholar
  5. Funasaki J, Naito H, Kan’no T, Miyasita M, Tikazawa S, Ueda Y, IIjima S (2006) Seismic activity and tilt change observed before the middle scale eruptions of Asama volcano in 2004. Bull Volcanol Soc Jpn 51:125–133Google Scholar
  6. Genco R, Ripepe M (2010) Inflation–deflation cycles revealed by tilt and seismic records at Stromboli volcano. Geophys Res Lett 37, L12302. doi:10.1029/2010GL042925 Google Scholar
  7. Hirasawa K, Matsumoto H (1983) Volcanic geology of Suwanosejima, the Tokara islands, Kagoshima Prefecture. Bull Volcanol Soc Jpn 28:101–115 (in Japanese with English abstract)Google Scholar
  8. Ichihara M, Takeo M, Yokoo A, Oikawa J, Ohminato T (2012) Monitoring volcanic activity using correlation patterns between infrasound and ground motion. Geophys Res Lett 39: doi:10.1029/2011GL050542
  9. Iguchi M, Yakiwara H, Tameguri T, Hendrasto H, Hirabayashi J (2008) Mechanism of explosive eruption revealed by geophysical observations at the Sakurajima, Suwanosejima and Semeru volcanoes. J Volcanol Geotherm Res 178:1–9CrossRefGoogle Scholar
  10. Iguchi M, Surono, Nishimura T, Hendrasto M, Rosadi U, Ohkura T, Triastuty H, Basuki A, Loeqman A, Maryanto S, Ishihara K, Yoshimoto M, Nakada S, Hokanishi N (2012) Methods for eruption prediction and hazard evaluation at Indonesian volcanoes. J Disaster Res 7:26–36Google Scholar
  11. Ishihara K (1990) Pressure sources and induced ground deformation associated with explosive eruptions at an andesitic volcano: Sakurajima volcano, Japan. In: Ryan M (ed) Magma transport and storage. Wiley, Chichester, pp 335–356Google Scholar
  12. James MR, Lane SJ, Corder SB (2008) Modelling the rapid near-surface expansion of gas slugs in low-viscosity magmas. In: Lane, S. J., Gilbert, J. S. (Eds.), Fluid motions in volcanic conduits: a sourceof seismeic and acoustic signals. Geol. Soc. Spec. Publ. The Geological Society: 307, 147–167Google Scholar
  13. Japan Meteorological Agency (2012) Bulletin on volcanic activity, Suwanosejima, http://www.seisvol.kishou.go.jp/tokyo/STOCK/monthly_v-act_doc/fukuoka/12m12/511_12m12.pdf, pp5 (in Japanese)
  14. Johnson JB, Sanderson R, Lyons R, Escobar-Wolf, Waite G, Lees JM (2009) Dissection of a composite volcanic earthquake at Santianguito, Guatemala. Geophys Res Lett 36: doi:10.1029/2009GL039370
  15. Kamo K, Ishihara K (1989) A preliminary experiment of automated judgment of the stages of eruptive activity using tiltmeter records. In: Latter JH (ed) Volcanic hazards: assessment methods and monitoring. Springer, Heidelberg, pp 585–598CrossRefGoogle Scholar
  16. Kanamori H, Given JW, Lay T (1984) Analysis of seismic body waves excited by the Mt. St. Helens eruption of May 18. J Geophys Res 89:1856–1866CrossRefGoogle Scholar
  17. Kawaguchi R, Nishimura T, Sato H (2011) Volcano deformation caused by gas slug ascent in an open conduit. Jpn Geosci Meet 2011, SVC047-05Google Scholar
  18. Kawaguchi R, Nishimura T, Sato H (2013) Volcano inflation prior to an eruption: numerical simulations based on a 1-D magma flow model in an open conduit. Earth Planet Space. doi:10.5047/EPS.2013.05.005
  19. Lyons JJ, Waite GP, Ichihara M, Lees JM (2012) Tilt prior to explosions and the effect of topography on ultra-long-period seismic records at Fuego volcano, Guatemala. Geophys Res Lett 39: doi:10.1029/2012GL051184
  20. Mori T, Burton M (2006) The SO2 camera: a simple, fast and cheap method for ground-based imaging of SO2 in volcanic plumes. Geophys Res Lett 33: doi:10.1029/97JB01141
  21. Mori T, Hirabayashi J, Kazahaya K, Mori T, Ohwada M, Miyashita M, Iino H, Nakahori Y (2007) A compact ultraviolet spectrometer system (COMPUSS) for monitoring volcanic SO2 emission: validation and preliminary observation. Bull Volcanol Soc Jpn 52:105–112Google Scholar
  22. Mori T, Iguchi M, Nishimura T, Oikawa J (2011) Precursory gas flux change observed before eruptions at Suwanosejima volcano, Japan. IUGG 2011 General Assembly, Melbourne, AustraliaGoogle Scholar
  23. Nadeau PA, Palama JL, Waite GP (2011) Linking volcanic tremor, degassing, and eruption dynamics via SO2 imaging. Geophys Res Lett 38: doi:10.1029/2010GL045820
  24. Nakamichi H, Aoyama H, Nishimura T, Yakiwara H, Ohta Y, Yokoo A, Iguchi M (2012) Source process of explosive eruptions inferred from analysis of seismic array data recorded very close to the active crater of Suwanosejima volcano, Japan. AGU fall meeting, V31G-02Google Scholar
  25. Nishi K, Hendrasto M, Rosadi U, Purbawinata MA (2007) Micro-tilt changes preceding summit explosions at Semeru volcano, Indonesia. Earth Planets Space 59:151–156Google Scholar
  26. Nishimura T (2006) Ground deformation due to magma ascent with and without degassing. Geophys Res Lett 33, L23309. doi:10.1029/2006GL028101 CrossRefGoogle Scholar
  27. Nishimura T (2009) Ground deformation caused by magma ascent in an open conduit. J Volcanol Geotherm Res 187(3–4):178–192. doi:10.1016/j.jvolgeores.2009.09.001 CrossRefGoogle Scholar
  28. Nishimura T, Hamaguchi H (1993) Scaling law of volcanic explosion earthquake. Geophys Res Lett 20:2479–2482CrossRefGoogle Scholar
  29. Nishimura T, Iguchi M, Kawaguchi R, Surono, Hendrasto M, Rosadi U (2012) Inflations prior to vulcanian eruptions and gas bursts detected by tilt observations at Semeru Volcano, Indonesia. Bull Volcanol 74:903–911. doi:10.1007/s00445-012-0579-z CrossRefGoogle Scholar
  30. Ohminato T, Takeo M, Kumagai H, Yamashina T, Oikawa J, Koyama E, Tsuji H, Urabe T (2006) Vulcanian eruptions with dominant single force components observed during the Asama 2004 volcanic activity in Japan. Earth Planets Space 58:583–593Google Scholar
  31. Otsuki S, Nakamura M (2012) Relaxation of melt foam: implications for Vulcanian explosions, AOGS-AGU (WPGM) Joint Assembly 2012, ShingapoleGoogle Scholar
  32. Shimano T, Koyaguchi T (2001) Eruption styles and degassing process of ascending magma of the 1813 eruption of Suwanosejima volcano, Southwest Japan. Bull Volcanol Soc Jpn 46:53–70 (in Japanese with English abstract)Google Scholar
  33. Shimano T, Geshi, N, Kobayashi, T (2013) Geological map of Suwanosejima volcano. 1: 20,000, Geological map of volcanoes, 17, Geological Survey of Japan. (in Japanese with English abstract. English document is available at https://gbank.gsj.jp/volcano-AV/volcmap/17/index-e.html)
  34. Takeo M, Maehara Y, Ohminato T, Ichihara M, Oikawa J (2012) Ground deformation cycles participating with sub-Plinian, Vulcanian eruptions, and a magma effusive stage at Kirishima volcanoes. Fall Meet Am Geophys Union 2012:V33D–V2904DGoogle Scholar
  35. Tateo Y, Iguchi M (2009) Ground deformation associated with BL-type earthquake swarms at Sakurajima volcano. Bull Volcanol Soc Jpn 54:175–186 (in Japanese with English abstract)Google Scholar
  36. Uhira K, Takeo M (1994) The source of explosive eruptions of Sakurajima volcano, Japan. J Geophys Res 99:17,775–17,789CrossRefGoogle Scholar
  37. Vergiolle S, Jaupart C (1986) Separated two-phase flow and basaltic eruptions. J Geophys Res 91:12842–12860CrossRefGoogle Scholar
  38. Wiens DA, Pozgay SH, Shore PJ, Sauter AW, White RA (2005) Tilt recorded by a portable broadband seismograph: the 2003 eruption of Anahatan Volcano, Mariana Islands. Geophys Res Lett 32, L18305. doi:10.1029/2005GL023369 CrossRefGoogle Scholar
  39. Yokoo A, Iguchi M, Tameguri T, Yamamoto K (2013) Processes prior to outbursts of vulcanian eruption at Showa crater of Sakurajima volcano. Bull Volcanol Soc Jpn 58:163–181Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Takeshi Nishimura
    • 1
  • Masato Iguchi
    • 2
  • Hiroshi Yakiwara
    • 3
  • Jun Oikawa
    • 4
  • Ryohei Kawaguchi
    • 1
  • Hiroshi Aoyama
    • 5
  • Haruhisa Nakamichi
    • 6
  • Yusaku Ohta
    • 7
  • Takeshi Tameguri
    • 2
  1. 1.Department of Geophysics, Graduate School of ScienceTohoku UniversitySendaiJapan
  2. 2.Sakurajima Volcano Research Center, Disaster Prevention Research InstituteKyoto UniversityKagoshimaJapan
  3. 3.Nansei-Toko Observatory for Earthquakes and Volcanoes, Faculty of ScienceKagoshima UniversityKagoshimaJapan
  4. 4.Earthquake Research InstituteUniversity of TokyoTokyoJapan
  5. 5.Institute of Seismology and Volcanology, Graduate School of ScienceHokkaido UniversitySapporoJapan
  6. 6.Earthquake and Volcano Research Center, Graduate School of Environmental StudiesNagoya UniversityNagoyaJapan
  7. 7.Research Center for Prediction of Earthquakes and Volcanic Eruptions, Graduate School of ScienceTohoku UniversitySendaiJapan

Personalised recommendations