Name: Nakada, Setsuya
Division/Center: Volcano Research Center
Research Area: Volcano geology and petrology

Last Update 11/06 2014


My research field is geology and petrology for forecasting volcanic eruptions. During the recent eruptions at Unzen, Usu, Miyake-jima, Asama, Shinmoe-dake (Kirishima), Anatahan (Northern Marianas) and so on, geological observation and petrological investigation were carried out to clarify the magnitudes and modes of eruptions and to understand the magma processes and eruption mechanisms. In the latter purposes, I led the international drilling project of penetrating into the conduits at Unzen (1999-2004), soon after its eruption, for understanding the structure of the conduit area and degassing process. As the research of forecasting the magnitudes, modes, and temporal development of eruptions, we are preparing the eruption event-trees with branches of probabilities for volcanoes with high eruption-potential, based on their geological and documented eruption histories and monitoring data. Recently, the international cooperative research is carried out on erupting volcanoes in Indonesia (Kelud, Sinabung, etc.) for improving techniques of forecasting eruptions. In addition to these research activities, I promote the geopark activity to educate young people on geological sciences, to help sustainable development of local communities, and to mitigate natural hazards.


Chen, C-H., D.J.DePaolo, S. Nakada, Y-N Shieh, Relationship between eruption volume and neodymium isotopic composition at Unzen volcano, Nature, 362, 831--834, 1993.

Nakada, S., T. Fujii, Preliminary report on the activity at Unzen Volcano (Japan), November 1990-November 1991: Dacite lava domes and pyroclastic flows, J. Volcanol. Geotherm. Res., 54, 319--333, 1993.

Nakada, S., Bacon, C.R., and Gartner, A.E., Origin of phenocrysts and compositional diversity in pre-Mazama rhyodacite lavas, Crater Lake, Oregon, Journal of Petrology, 35, 127--165, 1994.

Nakada, S., Miyake, Y., Sato, H., Oshima, O., and Fujinawa, A., Endogenous growth of dacite dome at Unzen volcano (Japan), 1993-1994, Geology, 23, 157--160, 1995.

Nakada, S., H. Shimizu, and K. Ohta, Overview of 1990-1995 eruptions at Unzen Volcano., Journal of Volcanology and Geothermal Research, 89, 1/4, 1--22, 1999.

Nakada. S. and Y. Motomura, Petrology of the 1991-95 eruption at Unzen: effusion pulsation and groundmass crystallization., Journal of Volcanology and Geothermal Research, 89, 1/4, 173--196, 1999.

Nakada, S., Hazards from pyroclastic flows and surges., In Sigurdsson, H. (ed.) 'Encyclopedia of Volcanoes', Academic Press, 945--955, 2000.

Nakada, S., M. Nagai, T. Kaneko, A. Nozawa, K. Suzuki-Kamata, Chronology and products of the 2000 eruption of Miyakejima Volcano, Japan, Bull. Volcanology, 67, 3, 205--218, 2005.

Nakada, S., Matsushima, T., Yoshimoto, M., Sugimoto, T., Kato, T., Watanabe, T., Chong, R., Camacho, J.T., Geological aspects of the 2003-04 eruption of Anatahan Volcano, Northern Mariana Islands, J. Volcanol. Geotherm. Res., 146, 1-3, 226--240, 2005.

Goto, Y., Nakada, S., Kurokawa, M., Yoshimoto, M., Shimano, T., Sugimoto, T., Sakuma, S., Hoshizumi, H., Uto, K., Character and origin of lithofacies in the conduit of Unzen volcano, Japan., J. Volcanol. Geotherm. Res., 175, 1-2, 45--59, 2008.

Sakuma, S., Kajiwara, T., Nakada, S., Uto, K., Shimizu, H., Drilling and logging results of USDP-4 – Penetration into the volcanic conduit of Unzen Volcano, Japan -, J. Volcanol. Geotherm. Res., 175, 1-2, 1--12, 2008.

Nakada, S., Nagai, M., Kaneno, T., Suzuki, Y., Maeno, F., The outline of the 2011 ruption at Shinmoe-dake (Kirishima), Japan., Earth Planets Space, 65, 475--488, 2013.

Maeno, F., M. Nagai, S. Nakada, R.E. Burden, S. Engwell, Y. Suzuki, T. Kaneko, Contrasting tephra dispersion and deposition from three subplinian explosions in 2011 at Shinmoedake volcano, Kyushu, Japan., Bull. volcanol., 76, doi:10.1007/s00445-014-0823-9, , 2014.

Nakada, S., Uto, K., Sakuma, S., Eichelberger, J.C., Shimizu, H., Scientific results of conduit drilling in the Unzen Scientific Drillin Project, Scientific Drilling, 1, 18--22, 2005.

Nakada, S., Characteristics of recent geohazards and roles of geoparks., Rend. Online, Societa Geologica Italiana, 28, 117--120, 2013.