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Research Highlights


Technical Publications in Volcanoes


Ogden, D.E., Wohletz, K.H., Glatzmaier, G.A., and Brodsky, E.E. (2008) Numerical simulation of volcanic jets: importance of vent overpressure, Journal of Geophysical Research 113, B02204, doi:10,1029/2007JB005133.

Ogden, D.E., Glatzmaier, G.A., and Wohletz, K.H. (2008) Effects of vent overpressure on buoyant eruption columns: implications for plume stability, Earth and Planetary Science Letters 268/3-4, 283-292, doi:10.1016/j.epsl.2008.01.014.


DeShon, H. R., C. H. Thurber, and C. A. Rowe (2007), High-precision earthquake location and three-dimensional P-wave velocity determination at Redoubt Volcano, Alaska, Jour. Geophys. Res., DOI:10.1029/2006JB004751 (External Abstract Link)


Wohletz, K.H. (2006) Fractures in welded tuff in Heiken, G., ed., Tuffs - Their properties, uses, hydrology, and resources: Geological Society of America Special Paper 408, p. 17-31, doi: 10.1130/2006.2408(2.3).

Burt, D.M., Wohletz, K.H., and Knauth, L.P. (2006) Mars and mine dumps, EOS, Transactions American Geophysical Union 87(49), 549-552.

Rowe, C.A., A. Garcia-Aristizabal., R. White (2006). Multiple denoising and classification methods for improving seismic surveillance: Applications at Guagua Pichincha, Soufriere Hills and Redoubt Volcano, Seis. Res. Lett. 77, 240.


Knauth, LP, Burt, DM, and Wohletz, KH (2005) Impact origin of sediments at the Opportunity landing site on Mars, Nature 438, 1123-1128.

Rowe, C.A., J.K. MacCarthy, C.H. Thurber, R.A. White, F. Giudicepietro and R. Luckett (2005) Seismic waveform classification for automatic detection and improved location of volcanic events, The Soufriere Hills Volcano, Ten Years On, Plymouth, Montserrat, July 2005. (Abstact - 36 KB PDF File)

MacCarthy, J.K., and C.A. Rowe (2005) Automatic scanning detection for characterization of dome-related seismic swarms at Mount St. Helens, and their evolution through time, EOS, Transactions, AGU, Fall meeting abstracts. (External Abstract Link)

Rowe, C.A., R.C. Aster and P.R. Kyle (2005) Broadband seismic recording of Strombolian explosions at Mount Erebus, Antarctic Jour. of the U.S. 33, 330-334. (External Abstract Link)

Ogden DE, Wohletz KH, Glatzmaier, GA, and Peterson, AH (2005) Preliminary benchmarking of numerical simulations of the supersonic behavior of Plinian eruptions, EOS Trans Amer Geophys Union 86(52), Fall Meet. Suppl., Abstract V34B-07.

Rowe, C.A., R.C. Aster, P.R. Kyle and A. Eschenbacher (2005) Seismic observations at the Mount Erebus Observatory: 1997-1998, Antarctic Jour. of the U.S. 33, 335-339. (External PDF Link)

Peterson, AH, Ogden DE, Wohletz KH, Gisler G, and Glatzmaier, GA (2005) Preliminary benchmarking of Plinian eruption simulations using an adaptive grid eulerian technique, EOS Trans Amer Geophys Union 86(52), Fall Meet. Suppl., Abstract V31D-0647. (External Abstract Link)


Rowe, C.A., C. H. Thurber and R. A. White (2004) Dome growth behavior at Soufriere Hills Volcano, Montserrat, revealed by relocation of volcanic event swarms, 1995-1996, Jour. Volc. Geotherm. Res. 134, 199-221. (External PDF Link)

Battaglia, J., C. H. Thurber, J.-L. Got, C. A. Rowe and R. A. White (2004) Precise relocation of earthquakes following the June 15, 1991 explosion of Mount Pinatubo (Phillippines), Jour. Geophys. Res. 109,B07302, doi:10.1029/2003JB002883. (External PDF Link)

Ogden, DE, Wohletz, KH, and Glatzmaier, GA (2004) An approach to the turbulent multifield/multiphase dynamics of volcanic conduits and plumes, EOS Trans Amer Geophys Union 85(47), Fall Meet. Suppl., Abstract V33D-1484. (External PDF Link)


Zimanowski B, Wohletz K, Dellino P, and Büttner, R. (2003) The volcanic ash problem. Journal of Volcanology and Geothermal Research 122, 1-5.

Wohletz, KH (2003) Water/magma interaction: physical considerations for the deep submarine environment. American Geophysical Union Monograph 140, 25-49.

Rowe, C.A., R. A. White and C. H. Thurber (2003) Correlation-based seismic event locations at Soufriere Hills volcano: insights into magma extrusion behavior through detailed mapping of seismic energy release, Seismol. Res. Lett. 73(2): 214.

Wiemer, S. and C. Rowe (2003) Monitoring temporal and spatial variations in the frequency-magnitude distribution of microearthquakes: an emerging capability in volcano seismology? Seismol. Res. Lett. 73(2): 204.

Baher, S., C. Thurber, K. Roberts and C. Rowe (2003) Relocation of seismicity preceding the 1984 eruption of Mauna Loa Volcano, Hawaii: Delineation of a possible failed rift, J. Volc. Geotherm. Res. 128 :327-339. (External PDF Link)


Rowe, C.A., C. H. Thurber and S. Baher (2002) Can precise seismic event relocations improve our insights into evolving eruption processes? Seismol. Res. Lett. 73(2): 244.

Wohletz, KH (2002) Water/magma interaction: some theory and experiments on peperite formation Journal of Volcanology and Geothermal Research 14, 19-35.


Taddeucci J, and Wohletz KH (2001) Temporal evolution of the Minoan eruption (Santorini, Greece), as recorded by its Plinian fall deposit and interlayered ash flow beds. Journal of Volcanology and Geothermal Research 109/4, 301-319.


Rowe, C.A., R.C. Aster, B. Borchers, C.J. Young, W.S. Phillips and M.C. Fehler (2000) Precise relocation of hydrofracture and volcanic seismicity: Improved interpretability following application of an automatic, correlation-based repicking algorithm, EOS, Trans. AGU 81: F862. (External Abstact Link)

Wohletz KH and Zimanowski B (2000) Physics of phreatomagmatism, part I: explosion physics, Terra Nostra 2000/6, 515-523.

Zimanowski B and Wohletz, KH (2000) Physics of phreatomagmatism, part II: eruption physics, Terra Nostra 2000/6, 535-544.

Stimac JA, Goff, F, and Wohletz K (2000) Thermal modeling of the Clear Lake magmatic-hydrothermal system, California. Geothermics 30, 349-390.

1999 & Earlier

Wohletz KH, Orsi G, and Civetta L (1999) Thermal evolution of the Phlegraean magmatic system. Journal of Volcanology and Geothermal Research 91, 381-414.

Orsi G, Petrazzuoli S, and Wohletz KH (1999) Mechanical and thermo-fluid behavior during unrest at the Campi Flegrei caldera (Italy). Journal of Volcanology and Geothermal Research 91, 453-470.

Morrissey M, Zimanowski B, Wohletz K, and Büttner R (1999) Phreatomagmatic fragmentation. In: Encyclopedia of Volcanoes, H Sigurdsson (Ed.), Academic, San Diego, CA.

Wohletz KH (1998) Pyroclastic surges and compressible two-phase flow. In: From MAGMA to TEPHRA Modelling Physical Processes of Explosive Volcanic Eruptions, A Freundt (Ed.), Elsevier Science Publications, Amsterdam, 247-312.

Wohletz KH, Orsi G, and de Vita S (1995) Eruptive mechanisms of the Neapolitan Yellow Tuff interpreted from stratigraphy, chemistry, and granulometry. Journal of Volcanology and Geothermal Research 67, 263-290.

Brown WK and Wohletz KH (1995) A derivation of the Weibull distribution based on physical principles and its connection to the Rosin-Rammler and the lognormal distributions. Journal of Applied Physics 78(4), 2758-2763.

Wohletz KH, McQueen RG, and Morrissey M (1995) Analysis of fuel-coolant interaction experimental analogs of hydrovolcanism, In: Intense Multiphase Interactions (T G Theofanous and M Akiyama, Eds.) Proceedings of US (NSF) Japan (JSPS) Joint Seminar, Santa Barbara, CA, June 8-13 (1995) 287-317. (LA-UR 94-0370)

Wohletz KH and Brown W (1995) Particulate size distributions and sequential fragmentation/transport theory, In: Intense Multiphase Interactions (T G Theofanous and M Akiyama, Eds.) Proceedings of US (NSF) Japan (JSPS) Joint Seminar, Santa Barbara, CA, June 8-13 (1995) 235-241.

Wohletz KH and Raymond R Jr (1993) Atmospheric dust dispersal analyzed by granulometry of the MISERS GOLD event. Journal of Geophysical Research 98: 557-566.

Wohletz KH (1993) Hidrovolcanism. In Nuevas Tendencias: La Volcanologia Actual (J Marti and V Araña, Eds.), Consejo Superior de Investigaciones Cientificas, Madrid, Chapter 3, 99-196.

Valentine GA, Wohletz KH, and Kieffer SW (1992) Effects of topography on facies and compositional zonations in caldera-related ignimbrites. Geological Society of America Bull 104: 154-165.

Orsi G, Gallo G, Heiken G, Wohletz K, Yu E, and Bonani G (1992) A comprehensive study of pumice formation and dispersal: the Cretaio Tephra of Ischia (Italy). Journal of Volcanology and Geothermal Research 53: 329-354.

Sheridan MF and Wohletz KH (1992) Animated computer models of volcanic eruptions, Geotimes, July, 15-17.

Duffield WA, Heiken GH, Wohletz KH, Maassen LW, Dengo G, McKee EH, and Castañeda O (1992) Geology and geothermal potential of the Tecuamburro volcano area of Guatemala. Geothermics 21: 425-446.

Wohletz KH and Heiken G (1992) Volcanology and Geothermal Energy. University of California Press, Berkeley, CA, 432 pp.

Heiken G, Ramos N, Duffield W, Musgrave J, Wohletz K, and others (1991) Geology of the Platanares geothermal area, Departamento de Copán, Honduras. Journal of Volcanology and Geothermal Research, 45: 29-41.

Woods AW and Wohletz, KH (1991) Co-ignimbrite eruption columns. Nature, 350: 225-227.

Heiken G. and Wohletz, K (1991) Fragmentation processes in explosive volcanic eruptions. In: Sedimentation in Volcanic Settings (R. V. Fisher and G. Smith Eds), Society of Sedimentary Geology Spec Pub 45:19-26.

Valentine GA, Wohletz KH, and Kieffer SW (1991) Sources of unsteady column dynamics in pyroclastic flow eruptions. Journal of Geophysical Research 96: 21,887-21,892.

Wohletz KH and Valentine GA (1990) Computer simulations of explosive volcanic eruptions. In: Magma Transport and Storage (MP Ryan, Ed.), Wiley, London, Chapter 8, 113-135.

Wohletz KH, Sheridan MF, and Brown WK (1989) Particle size distributions and the sequential fragmentation/transport theory applied to volcanic ash. Journal of. Geophysical. Research 94: 15,703-15,721.

Valentine GA and Wohletz KH, (1989) Numerical models of Plinian eruption columns and pyroclastic flows. Journal of Geophysical Research 94:1867-1887.

Valentine GA and Wohletz KH, (1989) Environmental hazards of pyroclastic flows determined by numerical models. Geology., 17: 641-644.

Wohletz KH, McGetchin TR, Sandford-II MT, and Jones EM (1984) Hydrodynamic aspects of caldera-forming eruptions: numerical models. Journal of Geophysical Research 89: 8269-8285.

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