- John's recent papers are:
Permission to Copy: For all works linked to these pages authored
by John Louie, where copyright has not been reserved by others, John Louie gives
worldwide permission to copy, transmit, store, print, and distribute the
work, provided the work's source, copyright notice, and authorship remains as
is in the original work, on all copies. Extracts may be made from all such works
and similarly copied, exhibited, or distributed, provided attribution to ``J.
University of Nevada'' immediately accompanies all extracts. There are other
here, identified with red links
and within their electronic files, for which J. Louie cannot extend any permission to distribute.
- J. Louie, Pancha, A., Pullammanappallil, S., and West*, L. T., 2018, Clark County Earthquake Parcel Map Vs30 effects on predictions of shaking for Las Vegas (paper 1477): Proceedings of the 11th National Conference in Earthquake Engineering, Earthquake Engineering Research Institute, Los Angeles, Calif., 5 pp.
(10 Mb PDF)
- L. T. West*, Louie, J., Pullammanappallil, S., Sensitivity tests of detailed shear-wave velocity profiles to 95 m depth in 3D numerical simulations of wave propagation to 15 Hz frequency, Clark County, Nevada (paper 1127): Proceedings of the 11th National Conference in Earthquake Engineering, Earthquake Engineering Research Institute, Los Angeles, Calif., 5 pp.
(4.9 Mb PDF)
- A. Pancha, S. Pullammanappallil, J. N. Louie, P. H. Cashman, and J. H. Trexler, 2017b, Determination of 3D basin shear-wave velocity structure using ambient noise in an urban environment: A case study from Reno, Nevada: Bulletin of the Seismological Society of America, 107, no. 6 (December), 3004-3022, doi: 10.1785/0120170136.
(7.6 Mb PDF preprint)
- A. Pancha, S. K. Pullammanappallil, L. T. West, J. N. Louie, and W. K. Hellmer, 2017a, Large scale earthquake hazard class mapping by parcel in Las Vegas Valley, Nevada: Bulletin of the Seismological Society of America, 107, no. 2 (April), 741-749, doi: 10.1785/0120160300. (668 kb PDF journal reprint)
- J. Louie, A. Pancha, S. Pullammanappallil, 2017, Applications of Refraction Microtremor done right, and pitfalls of microtremor arrays done wrong: invited for presentation at the 16th World Conference on Earthquake Engineering (16WCEE) Paper No. 4947, Santiago, Chile, Jan. 9-13, 12 pp.
(14.1 Mb PDF preprint)
- A. Pancha, J. Louie, S. Pullammanappallil, 2017, Detailed measurement of NEHRP site classifications throughout Las Vegas Valley, Nevada, for building code enforcement by Clark County: accepted for presentation at the 16th World Conference on Earthquake Engineering (16WCEE) Paper No. 0458, Santiago, Chile, Jan. 9-13, 12 pp.
(9.5 Mb PDF preprint)
- Kyle Basler-Reeder, John Louie, Satish Pullammanappallil, and Graham M. Kent, 2016, Joint optimization of vertical component gravity and P-wave first arrivals by simulated annealing: Geophysics, 81, ID59-ID71, DOI: 10.1190/geo20150643.1.
(4.6 Mb PDF preprint)
- J. Louie, G. Schmauder, G. Kent, K. Smith, K. McBean, A. McBean, K. Gray, and K. Hall, 2016, Chapter 45: Simulation of scenario-earthquake shaking in the Lake Tahoe basin - a comparison between ShakeMap and Nevada ShakeZoning: in R. Anderson and H. Ferriz, Eds., Applied Geology in California, Assoc. of Engineering and Environmental Geologists Special Publication 26, Star Publishing Company, Belmont, Calif., 897-925, ISBN 978-0-89863-399-3.
(5.8 Mb PDF preprint or
20 Mb PDF preprint with highres figs)
- T. A. Stern, S. H. Henrys, D. A. Okaya, J. Louie, M. K. Savage, S. H. Lamb, H. Sato, R. Sutherland, and T. Iwasaki, 2015, A seismic reflection image for the base of a tectonic plate: Nature, 518 (5 Feb.), 85-88, doi:10.1038/nature14146. 2015 winner of The New Zealand Geophysics Prize from the Geoscience Society of New Zealand. (12.2 Mb PDF journal reprint)
- Amy K. Eisses, Annie Kell, Graham M. Kent, Neal W. Driscoll, Rob L. Baskin, Ken D. Smith, Robert E. Karlin, John N. Louie, and Satish K. Pullammanappallil, 2015, New constraints on fault architecture, slip rates, and strain partitioning beneath Pyramid Lake, Nevada: Geosphere, 11, no. 3, doi:10.1130/GES00821.1.
- Brady A. Flinchum, John N. Louie, Kenneth D. Smith, William H. Savran, Satish K. Pullammanappallil, and Aasha Pancha, 2014, Validating Nevada ShakeZoning predictions of Las Vegas basin response against 1992 Little Skull Mtn. earthquake records: Bulletin of the Seismological Society of America, 104, no. 1 (Feb.), 439-450; first published online January 21; doi: 10.1785/0120130059.
(12.4 Mb PDF preprint with color figures)
- Tyler Kent, John Louie, and Jim Echols, 2013, Correlating azimuthal anisotropy to geothermal resource potential using a 3D-3C seismic survey of Soda Lake geothermal field, Nevada: SEG Technical Program Expanded Abstracts 2013: 341-346, DOI: http://dx.doi.org/10.1190/segam2013-1398.1. Copyrighted PDF available from SEG.
- W. J. Stephenson, R. N. Frary, J. N. Louie, and J. K. Odum, 2013, Quaternary extensional growth folding beneath Reno, Nevada, imaged by urban seismic profiling: Bulletin of the Seismological Society of America, 103, no. 5 (October), 2921-2927, doi: 10.1785/0120120311.
(8.9 Mb PDF journal proof)
- Shahar Shani-Kadmiel, Michael Tsesarsky, John N. Louie, and Zohar Gvirtzman, 2013, Geometrical focusing as a mechanism for significant amplification of ground motion in sedimentary basins: analytical and numerical study: Bulletin of Earthquake Engineering, published online Oct. 4, DOI 10.1007/s10518-013-9526-4, 19 pp.
- Mahesh S. Dhar, John N. Louie, Kenneth D. Smith, Mayo Thompson,
and Annie Kell-Hills, 2013 in revision, Station delays, their standard deviations, and event relocations in the Reno-area basin from a dense USArray Flexible Array deployment during the 2008 West Reno earthquake swarm: submitted to Bulletin of the Seismological Society of America, 9 March 2011, 43 pp.
- Shahar Shani-Kadmiel, Michael Tsesarsky, John N. Louie, and Zohar Gvirtzman, 2012, Simulation of seismic-wave propagation through geometrically complex basins - the Dead Sea Basin: Bulletin of the Seismological Society of America, 102, 1729-1739, doi: 10.1785/0120110254.
(4.8 Mb PDF preprint)
- J. N. Louie, Pullammanappallil, S., and Honjas, W., 2011, Advanced seismic imaging for geothermal development: Proceedings of the New Zealand Geothermal Workshop 2011, Nov. 21-23, Auckland, paper 32, 7 pp.
(9.3 Mb PDF preprint)
- I. M. Tibuleac, D. H. von Seggern, J. G. Anderson, and J. N. Louie, 2011, Computing Green's functions from ambient noise recorded by accelerometers and analog, broadband, and narrow-band seismometers: Seismological Research Letters, 82, 661-675.
- J. N. Louie, S. K. Pullammanappallil, A. Pancha, T. West, and W. Hellmer, 2011, Earthquake hazard class mapping by parcel in Las Vegas Valley: presented at the ASCE 2011 Structures Congress, Las Vegas, NV, April 14.
Proceedings paper link to ASCE - doi:10.1061/41171(401)156, 12 pp.)
- Zohar Gvirtzman and John N. Louie, 2010, 2D analysis of earthquake ground motion in Haifa Bay, Israel: Bulletin of the Seismological Society of America, 100, 733-750, doi: 10.1785/0120090019.
(3.7 Mb PDF preprint)
- Donghong Pei, John N. Louie, and Satish K. Pullammanappallil, 2009, Erratum to Improvements on Computation of Phase Velocities of Rayleigh Waves Based on the Generalized R/T Coefficient Method: Bulletin of the Seismological Society of America, 99, 2610-2611.
To be plain, you can
copy my figures into your public and private lectures as long as you credit me
the slide. You can also give copies of my preprints to your students and
as long as you keep the title and author page with each copy. You can have your
but can't distribute any reprint of journal articles posted here, since
the journal holds
the copyright to that version of my work.
- John works closely with
a Nevada software company that has partnered with the
University through the
Nevada Applied Research Initiative (NARI).
Optim is the principal supporter of the Center
for Migration and Tomography (CEMAT) and the Collaboratory
Computational Geosciences (CCoG) at UNR.
Their commercial products include:
- Free Software! John offers to geophysicists and students:
Copyright: The free software source linked above has been placed
public domain by its author, John Louie, and is free to all worldwide for any
A citation is always appreciated; see the
JRG page for suggestions.
- The Resource Geology Seismic Processing System for Java (JRG/Viewmat)
is a basic reflection processing package with superb graphics, 3-d
and crooked-line capabilities, SEG-Y and sound file I/O, and a friendly GUI that
runs on any machine (lacks muting, statics, migrations):
JRG home -
download (329 kb .jar) (double-click it) -
(217 kb .jar) -
class exercises using JRG:
wave propagation -
sound and image output examples.
- Nevada ShakeZoning/ModelAssembler is an
open-source, Java-based velocity-model gridding
that can integrate scattered and heterogeneous geophysical data sets.
Try the MA-CME 5.3.2 GUI: The ModelAssembler Community Modeling
Environment has a tutorial graphical interface that sets up the input
file for E3D or WPP runs. Get the
230-kb ZIP distribution and run it with the commands
unzip ma-5.3.2.zip; cd ma-5.3.2; java CME &''. Basin and geotechnical
data input files for Nevada, Los Angeles, and Wellington are available from
crack.seismo.unr.edu/hazsurv/CME/data/ . Example E3D runs are in
MA3 and the WPP and E3D finite-difference codes are used on the
CCoG facility in lab exercises for
a Geophysics and Geodynamics course to explain:
f-d synthetic seismograms;
the Courant condition;
Huygens, Fermat, and Snell.
More on the WPP code from:
More on Shawn Larsen's E3D code from:
the OECD's Nuclear Energy
LLNL's Hazards Mitigation
is C code that will convert E3D image sequences (created
on Linux or Sun) to raw image files for conversion to movies with shareware
applications on a Mac.
- AssembleTexans is a Java code, that will run on an
RT-125 bridge computer, and make gathers out of .RSY files by
simple concatenation that JRG will view:
download source (.java);
download compiled .class.
- SEGYTexans is an alternative Java code, that will run on an
RT-125 bridge computer, and make gathers out of .RSY files by
concatenation and windowing that JRG will view:
download source (.java);
download compiled .jar archive,
needed JRG class files.
- The Resource Geology Seismic Processing System (RG)
is a collection of 150 (mostly) simple C codes for seismic processing
research, without support for graphics or standard headers:
how to migrate network seismograms;
more about RG, enabled for Linux and MacOS X Mavericks in 2014;
download source (1.8 Mb);
Clayton's getpar (required);
exercise using RG.
- Getpar for Java implements some of the features of Clayton's library:
source [main() is usage examp.];
- Grav2d is a simple Talwani-prism gravity inversion,
in Java so it runs on anything, with no GUI and simple text input
- Surv is a C code that reduces data collected with an
download source (.c);
- Fttest is a C code for a 2-d FFT benchmark:
- John's research projects include:
- Read John's curriculum vita (with links),
or a 2-page resume in PDF
MS Word format.
- John's YouTube playlists that may be of interest to students and colleagues:
- Earthquake Scenarios- Animations of wave-propagation computations for earthquake scenarios.
- Mackay Geophysics- Students and faculty at the University of Nevada, Reno conduct geophysical surveys and present results. Some lecture materials posted for students. Links to some geophysically interesting movies by others.
- Road Flights- Timelapse videos taken from moving vehicles on trips around Nevada, California, and New Zealand. With frames taken at 1 to 5 second intervals, the apparent speeds can be in the thousands of miles per hour.
- Timelapse- Timelapse videos, mostly sunsets and sunrises, taken from stationary locations in California, Nevada, and New Zealand.
- Presentation on
Applied Geophysics at the Mackay School of Mines.
- Aerial Geology;
- geology/geophysics/tectonics thumbnail collection
- higher-res geophysical photos;
- class fieldwork albums;
- NPGS field trip April 9, 2016 to the Patuah and Stillwater geothermal power plants and the Hidden Cave aracheological site;
- Christchurch, New Zealand earthquake damage field trip, Nov. 24, 2013, and New Zealand ReMi Work Jan. 5-15, 2003;
- San Gabriel River and Las Vegas
Fieldwork Photo Albums
- 1855 Wairarapa,
New Zealand earthquake fault field trip, Sept. 10, 2005; and
Hutt & Wellington ReMi, New Zealand, 2006.