Project SEIZMO

Project SEIZMO is now hosted on Github!

• Get the latest version: zip or tar.gz
• Or grab a tagged version here.
• Or for they git-savvy:
git clone git://github.com/g2e/seizmo.git
git pull git://github.com/g2e/seizmo.git (to update to the latest version)

Project SEIZMO is a Matlab and GNU Octave based toolbox encompassing a collection of over 700 functions that provide a framework for seismic data preparation, quality control, and analysis akin to that of Seismic Analysis Code with a focus on passive source seismology at regional and global scales (where earthquakes and ambient noise are the sources). There are numerous functions for reading/writing standard seismic data formats, displaying and editing metadata, plotting seismograms, creating animations, data processing, and interactive analysis. Data processing capabilities include correlation, convolution, deconvolution, detrending, differentiation, integration, interpolation, resampling, filtering, merging, response transferring, rotation, stacking, spectral analysis, tapering, and windowing. The toolbox contains collections of functions for arrival time determination and quality control with cross correlation and cluster analysis, Rayleigh wave two plane-wave analysis, seismic ambient noise processing, and frequency-wavenumber analysis. SEIZMO utilizes direct access to the TauP toolkit to administer predicted arrival times, raypaths, pierce points, and travel time curves for several widely recognized 1D seismic earth models. Mapping in SEIZMO draws on the M_Map toolbox. The seismology toolbox also incorporates several 3D mantle models, a catalog of moment tensors from the Global CMT project, and a database of instrument responses available through IRIS. There are functions to aid in rapid prototyping and customization for new functions and documentation for every function is accessible through the inline help system.

SEIZMO is now in it's 4th year of temperamental development. Most of the current development is focused on analysis toolsets and documentation - the core of SEIZMO is quite stable. If you have questions, comments, or would like to contribute please email me at: ggeuler AT seismo (Note the s.) DOT wustl DOT edu

Pros:

• Matlab m-file based (no compiling) = works anywhere Matlab does
• written to be compatible with Octave (free and open source!)
• reads/writes several standard seismic data formats (SAC, NDK, etc)
• extensive usage of command-line based help system
• leverages Matlab's numerous functions, plotting, and debugging capabilities
• interacts with several freely available toolboxes (m_map, mattaup)
• includes databases of instrument responses and CMTs
• functions for both iteractive and automated analysis

Cons:

• Matlab m-file based (no compiling) = slower than fortran/c
• written by 1 grad student (slower development, less polish)
• no abundance of pdf/html documention yet

SEIZMO does not:

• include a phase picking interface
• locate earthquakes
• do focal mechanism or moment tensor inversions
• do tomographic inversions
• have miniseed support (coming soon!)
• work with css databases

Requirements:

• Matlab 7.1+ (7.3+ is recommended) or the latest release of GNU Octave
• Signal Processing Toolbox (for filtering and resampling)
• Statistics Toolbox (for clustering)

SCREENSHOTS

ANIMATIONS

Similar/Related Projects

• SAC
• SEISAN
• GISMO
• RSEIS
• CORAL
• SPLITLAB
• SeismicHandler
• TTBOX & LOCSMITH
• M_MAP
• MATTAUP
• SHTOOLS
• STK
• SEISLAB
• MATSEIS
• SEISMON
• SPICE Software
• CIG Software
• IRIS Software
• PASSCAL Software
• USC Software
• TauP
• MADAGASCAR
• SEISMIC UN*X
• SACLAB
• MacSAC