Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30127
Temporal Change of Fractal Dimension of Explosion Earthquakes and Harmonic Tremors at Semeru Volcano, East Java, Indonesia, using Critical Exponent Method

Authors: Sukir Maryanto, Iyan Mulyana


Fractal analyses of successive event of explosion earthquake and harmonic tremor recorded at Semeru volcano were carried out to investigate the dynamical system regarding to their generating mechanism. The explosive eruptions accompanied by explosion earthquakes and following volcanic tremor which are generated by continuous emission of volcanic ash. The fractal dimension of successive event of explosion and harmonic tremor was estimated by Critical Exponent Method (CEM). It was found that the method yield a higher fractal dimension of explosion earthquakes and gradually decrease during the occurrence of harmonic tremor, and can be considerably as correlated complexity of the source mechanism from the variance of fractal dimension.

Keywords: Fractal dimension, Semeru volcano, explosionearthquake, harmonic tremor, Critical Exponent Method

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1393


[1] M Nakagawa, "Chaos and Fractal in Engineering," Singapore: World Scientific, 1999, ch. 3.
[2] M Phothisonothai, M Nakagawa, "EEG-Based Fractal Analysis of Different Motor Imagery Tasks using Critical Exponent Method," Intl. Journal of Biomedical Sciences, vol. 1; pp175-180, 2006
[3] K Kusumadinata, "Catalogue of References on Indonesian Volcanoes with Eruptions in Historical Time", Volcanological Survey of Indonesia, pp 304, 1979
[4] S Siswowidjoyo, U Sudarsono, A D Wirakusumah, "The threat of hazards in the Semeru volcano region in East Java, Indonesia," Journal of Asian Earth Sciences, vol 15; pp. 185-194, 1997
[5] I Mulyana, "Characteristics of harmonic tremor at Semeru volcano, East Java, Indonesia," JICA Final Report of Volcanology and Comprehensive Sediment-related Disaster Prevention Measures J05-00876, 2006)
[6] K Nishi, M Hendrasto, I Mulyana, U Rosadi, M A Purbawinata, "Micro-tilt changes prior to the summit explosions at Semeru volcano, Indonesia" Earth, Planets and Space, vol. 59; pp. 151-159, (2007
[7] S Maryanto, M Iguchi, and T Tameguri, "Spatio-Temporal Characteristics on Spectra and Particle Motion of Harmonic Tremors at Sakurajima Volcano, Japan," Ann. Disast. Prev. Res. Inst., Kyoto University, vol. 48B, pp. 329-339, Apr. 2005
[8] S Maryanto, M Iguchi, and T Tameguri, "Constraints on the sources mechanism of harmonic tremors based on seismological, ground deformation, and visual observations at Sakurajima Volcano, Japan," Journal of Volcanology and Geothermal Research, vol. 170, pp. 198-217, 2008
[9] J Benoit and SR McNutt, "New constraints on source processes of volcanic tremor at Arenal volcano, Costa Rica, using broadband seismic data" Geophys. Res. Lett., vol. 24, no. 4, pp. 449-452, Feb. 1997
[10] B Chouet, "Excitation of a buried magmatic pipe: a seismic source model for volcanic tremor," J. Geophys. Res., vol. 90, no. B2, pp 1881-1893, Feb. 1985.
[11] V Schlindwein, J Wassermann and F Scherbaum. Spectral analysis of harmonic tremor signals at Mt. Semeru volcano, Indonesia. Geophys. Res. Lett., vol. 22, no. 13, pp 1685-1688, Jul. 1995.
[12] M Hellweg, "Physical model for the source of Lascar`s harmonic tremor," J. Volcanol. Geotherm. Res., vol 101, no. 1-2, pp. 183-198, Aug. 2000.
[13] S Kedar, S Bradford, and H Kanamori, "The origin of harmonic tremor at Old Faithful geyser," Nature, vol. 379, no. 22, pp. 708-711, Feb. 1996.
[14] BR Julian, "Volcanic tremor: non-linear excitation by fluid flow," J. Geophys. Res., vol. 99, no. B6, pp 11859-11877, Jun. 1994.
[15] B Chouet and HR Shaw, "Fractal Properties of Tremor and Gas-piston Events Observed at Kilauea Volcano, Hawaii," Journal of Geophysics Research, vol. 96, no B6, pp. 10177-10189, Jun. 1991.
[16] C Godano, C Cardaci, and E Privitera, "Intermittent Behaviour of Volcanic Tremor at Mt. Etna," Pure Appl. Geophysics, vol. 147, no. 4, pp. 729-744, Oct. 1996.
[17] C Godano and P Capuano, "Source Characterisation of Low Frequency Events at Stromboli and Vulcano Islands (Isole Eolie Italy)," Journal of Seismology, vol. 3, no. 4, pp. 393-408, Oct. 1999.
[18] KI Konstantinou, "Deterministic Nonlinear Source Processes of Volcanic Tremor Signals Accompanying the 1996 Vatnajökull Eruption, Central Iceland," Geophys. J. Int., vol. 148, no. 3, pp 663-675, March 2002.
[19] KI Konstantinou and Lin CH, "Nonlinear Time Series Analysis of Volcanic Tremor Events Recorded at Sangay Volcano, Ecuador. Pure Appl. Geophysics, vol. 161, no. 1, pp. 145-163, Jan. 2004.
[20] T Tameguri, S Maryanto, and M Iguchi, "Moment tensor analysis of harmonic tremors at Sakurajima Volcano," Ann. Disast. Prev. Res. Inst. Kyoto University, vol. 48B, pp. 323-328, Apr. 2005.
[21] T Tameguri, S Maryanto, and M Iguchi, "Source Mechanism of Harmonic Tremor at Sakurajima Volcano," Bull. Volcanol. Soc. Japan, vol. 52, pp 273-279, 2007.