Ground Deformation of Mayon Volcano Revealed by GPS Campaign Survey
Akimichi Takagi*1, Kenji Fujiwara*2, Takahiro Ohkura*3,
Artemio C. Luis, Jr.*4, Alejo V. Baloloy*5, Shinobu Ando*1,
Eduardo Laguerta*5, and Ma. Antonia V. Bornas*4
*1Meteorological Research Institute, Japan Meteorological Agency (JMA), 1-1 Nagamine, Tsukuba, Ibaraki 305-0052, Japan
*2Seismology and Volcanology Department, Japan Meteorological Agency (JMA), Tokyo, Japan
*3Aso Volcanological Laboratory, Kyoto University, Kumamoto, Japan
*4Volcano Monitoring and Eruption Prediction Division, Philippine Institute of Volcanology and Seismology (PHIVOLCS), Philippines
*5Mayon Volcano Observatory, Philippine Institute of Volcanology and Seismology (PHIVOLCS), Philippines
Determining the location and the amount of volume change of the pressure source beneath a volcano during the eruption preparation stage is an important issue in monitoring the magma accumulation. To do so, we have implemented a GPS campaign survey network around the Mayon volcano and monitored ground deformation since 2005. Rapid grounddeflating deformation was detected accompanied by the 2009 eruption. The Mogi model pressure source was estimated to be 8.5 km deep beneath the summit and the amount of volume change –13 × 106 m3. In magma accumulation preceding the 2009 eruption, ground deformation showed a weak inflationary trend, but it was difficult to evaluate the source parameters definitively. After the 2009 eruption, no deformation has been detected by the Continuous GPS observation network since 2012. Trend of many baselines of continuous and campaign network turned to extension since 2014. Magma may have started accumulating beneath the Mayon volcano.
-  J. T. Freymueller and A. M. Kaufman, “Changes in the magma system during the 2008 eruption of Okmok volcano, Alaska, based on GPS measurements,” J. Geophys. Res., Vol.115, B12415, doi:10.1029/2010JB007716, 2010.
-  S. Nakao, Y. Morita, H. Yakiwara, J. Oikawa, H. Ueda, H. Takahashi, Y. Ohta, T. Matsushima, and M. Iguchi, “Volume change of the magma reservoir relating to the 2011 Kirishima Shinmoe-dake eruption – Charging, discharging and recharging process inferred from GPS measurements,” Earth Planets Space, Vol.65, pp. 505-515, doi:10.5047/eps.2013.05.017, 2013.
-  S. Baker and F. Amelung, “Top-down inflation and deflation at the summit of Kīlauea Volcano, Hawai‘i observed with InSAR,” J. Geophys. Res., Vol.117, B12406, doi:10.1029/2011JB009123, 2012.
-  G. Jentzsch, R. Punongbayan, U. Schreiber, G. Seeber, C. Völksen, and A. Weise, “Mayon volcano, Philippines: change of monitoring strategy after microgravity and GPS measurements from 1992 to 1996,” J. Volcano. Geotherm. Res., Vol.109, pp. 219-234, 2001.
-  R. Dach, U. Hugentobler, P. Fridez, and M. Meindl, “Bernese GPS Software Version 5.0,” Astronomical Institute, University of Bern, p. 612, 2007.
-  K. Mogi, “Relations of the eruptions of various volcanoes and deformation of ground surfaces around them,” Bull. Earthq. Res. Inst. Univ. Tokyo, Vol.36, pp. 94134, 1958.
-  K. Fukui, S. Ando, K. Fujiwara, S. Kitagawa, K. Kokubo, S. Onizawa, T. Sakai, T. Shimbori, A. Takagi, T. Yamamoto, H. Yamasato, and A. Yamazaki, “MaGCAP-V : a Windows-based software to analyze ground deformation and geomagnetic change in volcanic areas,” IAVCEI 2013 Abstract, 4W_2C-P8, 2013.
-  PHIVOLCS, “MAYON VOLCANO ADVISORY, 07 May 2013 8:30 AM,” 2013.
-  Y. Maeda, H. Kumagai, R. Lacson Jr., M. S. Figueroa II, T. Yamashina, T. Ohkura, and A. V. Baloloy, “A phreatic explosion model inferred from a very long period seismic event at Mayon Volcano, Philippines,” J. Geophys. Res. Solid Earth, Vol.120, 2015, doi:10.1002/2014JB011440.
-  M. Cahulogan, Ma. Mirabueno, Ma. Boras, Ma. Arpa, and A. Pidlaoan, “Report on the December 19-30, 2009 and January 2-12, 2010 Field Surveys on Mayon Volcano,” Philippine Institute of Volcanology and Seismology Internal Report, p. 8, 2010 (unpublished).
-  T. Kozono, H. Ueda, T. Ozawa, T. Koyaguchi, E. Fujita, A. Tomiya, and Y. J. Suzuki, “Magma discharge variations during the 2011 eruptions of Shinmoe-dake volcano, Japan, revealed by geodetic and satellite observations,” Bull. Volcanol., Vol.75, p. 695, doi:10.1007/s00445-013-0695-4, 2013.
-  P. Wessel and W. H. F. Smith, “New, improved version of generic mapping tools released,” Eos Trans. AGU, Vol.79, No.47, pp. 579, doi:10.1029/98EO00426, 1998.
-  ASTER GDEM Validation Team, “ASTER Global DEM Validation Summary Report,” Online,
Available from internet: http://www.viewfinderpanoramas.org/GDEM/ASTER_GDEM_Validation_Summary_Report_-_FINAL_for_Posting_06-28-09.pdf [downloaded on July 14, 2014]
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