Robin Matoza

Robin Matoza
Assistant Professor

Contact Phone

805-893-3452

Office Location

Webb 2114

Specialization

Volcano geophysics, Volcano seismology, Volcano acoustics, Infrasound, Seismo-acoustics

 

Research

I use seismic and infrasound waves to understand how volcanoes work. Infrasound is atmospheric sound with frequencies below 20 Hz (20 Hz is the lower frequency limit of human hearing). With seismology, I study magmatic, hydrothermal, and faulting processes occurring within and around volcanoes. With infrasound, I study the mechanisms and dynamics of explosive eruptions and shallow volcanic degassing. This work is focused on understanding the geophysical signatures of volcanic unrest and eruption, with application in monitoring and mitigating volcanic hazards. More generally, I am interested in all aspects of infrasound and seismo-acoustic research, including numerous natural and man-made sources as well as infrasound propagation through the atmosphere. 

Publications

Submitted or in press

Matoza, R.S., D. Fee, D.N. Green, and P. Mialle, Volcano infrasound and the International Monitoring System, in “Infrasound Monitoring: Challenges and New Perspectives”, ed. A. Le Pichon, E. Blanc, and A. Hauchecorne, Springer, submitted

McKee, K., D. Fee, A. Yokoo, R. Matoza, and K. Kim, Analysis of gas jetting and fumarole acoustics at Aso Volcano, Japan, J. Volcanol. Geotherm. Res.in press

Published

Matoza, R.S., D.N. Green, A. Le Pichon, P.M. Shearer, D. Fee, P. Mialle, and L. Ceranna (2017), Automated detection and cataloging of global explosive volcanism using the International Monitoring System infrasound network, J. Geophys. Res. Solid Earth, 122, 2947-2971, doi:10.1002/2016JB013356 (link)

Fee, D., M.M. Haney, R.S. Matoza, A.R. Van Eaton, P. Cervelli, D.J. Schneider, and A.M. Iezzi (2017), Volcanic tremor and plume height hysteresis from Pavlof Volcano, Alaska, Science355, 6320, 45-48, doi:10.1126/science.aah6108 (link)

Fee, D., M. Haney, R. Matoza, C. Szuberla, J. Lyons, and C. Waythomas (2016), Seismic envelope-based detection and location of ground-coupled airwaves from volcanoes in Alaska, Bull. Seismol. Soc. Am.106, 3, doi:10.1785/0120150244 (link)

Matoza, R.S., B.A. Chouet, P.B. Dawson, P.M. Shearer, M.M. Haney, G.P. Waite, S.C. Moran, and T.D. Mikesell (2015), Source mechanism of small long-period events at Mount St. Helens in July 2005 using template matching, phase-weighted stacking, and full-waveform inversion, J. Geophys. Res. Solid Earth, 120, 6351-6364, doi:10.1002/2015JB012279 (link)

Matoza, R.S., D. Fee, and T.M. Lopez (2014), Acoustic characterization of explosion complexity at Sakurajima, Karymsky, and Tungurahua Volcanoes, Seismol. Res. Lett., 85, 6, 1187-1199, doi:10.1785/0220140110 (link)

Rowell, C.R., D. Fee, C.A.L. Szuberla, K. Arnoult, R.S. Matoza, P.P. Firstov, K. Kim, and E. Makhmudov (2014), Three-dimensional volcano-acoustic source localization at Karymsky Volcano, Kamchatka, Russia, J. Volcanol. Geotherm. Res.,  283, 101-115, doi:10.1016/j.jvolgeores.2014.06.015 (link)

Matoza, R.S., P.M. Shearer, and P.G. Okubo (2014), High-precision relocation of long-period events beneath the summit region of Kilauea Volcano, Hawai`i, from 1986 to 2009, Geophys. Res. Lett., 3413-3421, 41, doi:10.1002/2014GL059819 (link)

Lin, G., P.M. Shearer, R.S. Matoza, P.G. Okubo, and F. Amelung (2014), Three-dimensional seismic velocity structure of Mauna Loa and Kilauea volcanoes in Hawaii from local seismic tomography, J. Geophys. Res., 119, 4377-4392, doi:10.1002/2013JB010820 (link)

Matoza, R.S., and D. Fee (2014), Infrasonic component of volcano-seismic eruption tremor, Geophys. Res. Lett., 41, 1964-1970, doi:10.1002/2014GL059301 (link)

Matoza, R.S., D. Fee, T.B. Neilsen, K.L. Gee, and D.E. Ogden (2013), Aeroacoustics of volcanic jets: Acoustic power estimation and jet velocity dependence, J. Geophys. Res. Solid Earth, 118, 6269-6284, doi:10.1002/2013JB010303 (link)

Fee, D., R.S. Matoza, K.L. Gee, T.B. Neilsen, and D.E. Ogden (2013), Infrasonic crackle and supersonic jet noise from the eruption of Nabro Volcano, Eritrea, Geophys. Res. Lett., 40, 1-5, doi:10.1002/grl.50827 (link)

Matoza, R.S., P.M. Shearer, G. Lin, C.J. Wolfe, and P.G. Okubo (2013), Systematic relocation of seismicity on Hawaii Island from 1992 to 2009 using waveform cross correlation and cluster analysis, J. Geophys. Res. Solid Earth, 118, 2275-2288, doi:10.1002/jgrb.50189 (link)

Green, D.N., L. Evers, D. Fee, R.S. Matoza, M. Snellen, P. Smets, and D. Simons (2013), Hydroacoustic, infrasonic and seismic monitoring of the submarine eruptive activity and sub-aerial plume generation at South Sarigan, May 2010, J. Volcanol. Geotherm. Res., 257, 31-43, doi:10.1016/j.jvolgeores.2013.03.006 (link)

Garces, M.A., D. Fee, and R. Matoza (2013), Volcano Acoustics, Chapter 16, in “Modeling Volcanic Processes: The Physics and Mathematics of Volcanism”, ed. S.A. Fagents, T.K.P. Gregg, and R.M.C. Lopes, Cambridge University Press (link)

Matoza, R.S., M. Landès, A. Le Pichon, L. Ceranna, and D. Brown (2013), Coherent ambient infrasound recorded by the International Monitoring System, Geophys. Res. Lett., 40, doi:10.1029/2012GL054329 (link)

Chouet, B.A., and R.S. Matoza (2013), A multi-decadal view of seismic methods for detecting precursors of magma movement and eruption, J. Volcanol. Geotherm. Res., 252, 108-175, doi:10.1016/j.jvolgeores.2012.11.013 (link)

Fee, D., and R.S. Matoza (2013), An overview of volcano infrasound: from hawaiian to plinian, local to global, J. Volcanol. Geotherm. Res., 249, 123-139, doi:10.1016/j.jvolgeores.2012.09.002 (link)

Green, D.N., R.S. Matoza, J. Vergoz, and A. Le Pichon (2012), Infrasonic propagation from the 2010 Eyjafjallajökull eruption: Investigating the influence of stratospheric solar tides, J. Geophys. Res., 117, D21202, doi:10.1029/2012JD017988 (link)

Lalande, J.-M., O. Sèbe, M. Landès, P. Blanc-Benon, R.S. Matoza, A. Le Pichon, and E. Blanc (2012), Infrasound data inversion for atmospheric sounding, Geophys. J. Int., 190, 1, 687-701, doi:10.1111/j.1365-246X.2012.05518.x (link)

Landès, M., L. Ceranna, A. Le Pichon, and R.S. Matoza (2012), Localization of microbarom sources using the IMS infrasound network, J. Geophys. Res., 117, D06102, doi:10.1029/2011JD016684 (link)

Matoza, R.S., J. Vergoz, A. Le Pichon, L. Ceranna, D.N. Green, L.G. Evers, M. Ripepe, P. Campus, L. Liszka, T. Kvaerna, E. Kjartansson, and A. Hoskuldsson (2011), Long-range acoustic observations of the Eyjafjallajökull eruption, Iceland, April-May 2010, Geophys. Res. Lett., 38, L06308, doi:10.1029/2011GL047019 (link)

Matoza R.S., A. Le Pichon, J. Vergoz, P. Herry, J. Lalande, H. Lee, I. Che, and A. Rybin (2011), Infrasonic observations of the June 2009 Sarychev Peak eruption, Kuril Islands: Implications for infrasonic monitoring of remote explosive volcanism, J. Volcanol. Geotherm. Res., 200, 35-48, doi:10.1016/j.jvolgeores.2010.11.022 (link)

Matoza R.S., and B.A. Chouet (2010), Subevents of long-period seismicity: Implications for hydrothermal dynamics during the 2004-2008 eruption of Mount St. Helens, J. Geophys. Res., 115, B12206, doi:10.1029/2010JB007839 (link)

Matoza, R.S., D. Fee, and M.A. Garces (2010), Infrasonic tremor wavefield of the Pu`u O`o crater complex and lava tube system, Hawaii, in April 2007, J. Geophys. Res., 115, B12312, doi:10.1029/2009JB007192 (link)

Matoza, R.S., M.A. Garces, B.A. Chouet, L. D'Auria, M.A.H. Hedlin, C. De Groot-Hedlin, and G.P. Waite (2009), The source of infrasound associated with long-period events at Mount St. Helens, J. Geophys. Res., 114, B04305, doi:10.1029/2008JB006128 (link)

Matoza, R.S., D. Fee, M.A. Garces, J.M. Seiner, P.A. Ramon, and M.A.H. Hedlin (2009), Infrasonic jet noise from volcanic eruptions, Geophys. Res. Lett., 36, L08303, doi:10.1029/2008GL036486 (link)

Garces, M., D. Fee, D. McCormack, R. Servranckx, H. Bass, C. Hetzer, M. Hedlin, R. Matoza, H. Yepes, and P. Ramon (2008), Capturing the Acoustic Fingerprint of Stratospheric Ash Injection, EOS Trans. AGU (article), 89 (40), p377-379, doi:10.1029/2008EO400001 (link)

Moran, S.C., R.S. Matoza, M.A. Garces, M.A.H. Hedlin, D. Bowers, W.E. Scott, D.R. Sherrod, and J.W. Vallance (2008), Seismic and acoustic recordings of an unusually large rockfall at Mount St. Helens, Washington, Geophys. Res. Lett., 35, L19302, doi:10.1029/2008GL035176 (link)

Matoza, R.S., M.A.H. Hedlin, and M.A. Garces (2007), An Infrasound Array Study of Mount St. Helens, J. Volcanol. Geotherm. Res., 160, 249-262, doi:10.1016/j.jvolgeores.2006.10.006 (link)

Last updated May 2017

Courses

EARTH 11: Volcanoes and Humans

EARTH 20: Geological Catastrophes 

EARTH 136, 236: Geophysics (Seismology)

EARTH 131, 231: Geophysical Time-Series Analysis