The Statistical Seismology Library (SSLib) is a collection of earthquake hypocentral catalogues and R functions to analyse the catalogues. The analyses include graphical data displays, fitting of point process models, estimation of fractal dimensions, and routines to apply the M8 Algorithm to given datasets. The Statistical Seismology Library is written in the R Language, and consists of a number of R packages. Each package has its own Reference Manual that contains documentation for all functions within that package.
The software has been developed in the UNIX and Linux operating systems though versions compatible with the Microsoft Windows operating system are also available. Recent changes made to each package are listed in the manual for each package under the topic “changes”.
Packages with a name prefixed by “ss” are specific to statistical seismology. Other packages have wider statistical applications.
The Users Guide for the Statistical Seismology Library (guide.pdf, 623 Kb, 20 Nov 2007) contains a sequence of examples, showing how the functions can be implemented and how they are related to each other. The guide is divided into three parts. The first part gives an introduction to the R language, emphasising those features that are important for an understanding of SSLib. In the second part, examples are given for each package in SSLib, showing how the functions are related to each other. The third part is more technical and relates to system administration: installation of software, software modification, and inclusion of local earthquake catalogues.
Installation instructions for packages can be found in the Users Guide (§11.2). Package source code can be difficult to install on a MS Windows system, so some windows binaries are also available.
| Name | sslib |
| Title | Load SSLib Packages |
| Description | Provides a mechanism to attach the packages listed under Dependencies for use in a particular R session. |
| Version | 1.2-9 |
| Date | 05 Jul 2007 |
| Dependencies | ssBase, ssEDA, ssM8, Fractal, PtProcess |
| Suggests | ssNZ
(attached if installed onto the system) |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | sslib.pdf (85 Kb) |
| Source Code | sslib_1.2-9.tar.gz (2.8 Kb) |
| Windows Binary | Pre-compiled zip file |
| Name | ssBase |
| Title | Base Functions for SSLib |
| Version | 2.2-1 |
| Date | 21 Nov 2007 |
| Dependencies | chron (≥ 2.3-8) |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | base.pdf (276 Kb) |
| Source Code | ssBase_2.2-1.tar.gz (35 Kb) |
| Windows Binary | Pre-compiled zip file |
| Name | ssEDA |
| Title | Exploratory Data Analysis for Earthquake Data |
| Version | 2.2-1 |
| Date | 21 Nov 2007 |
| Dependencies | ssBase, maps (≥ 2.0-32) |
| Suggests | ssNZ, ssPDE, ssSCEC, mapdata, rggobi
(see Notes below) |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | eda.pdf (280 Kb) |
| Source Code | ssEDA_2.2-1.tar.gz (65 Kb) |
| Windows Binary | Pre-compiled zip file |
| Name | ssM8 |
| Title | M8 Earthquake Forecasting Algorithm |
| Version | 2.1-3 |
| Date | 28 Jan 2008 |
| Dependencies | ssBase |
| Suggests | ssNZ
(see Notes below) |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | m8.pdf (208 Kb) |
| Source Code | ssM8_2.1-3.tar.gz (21 Kb) |
| Windows Binary | Pre-compiled zip file |
The package ssNZ is required to run a number of the examples. However, the ssM8 package will run normally (except for these examples) without ssNZ installed.
| Name | Fractal |
| Title | Fractal Analyses |
| Version | 1.3-6 |
| Date | 21 April 2005 |
| Dependencies | - |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | fractal.pdf (117 Kb) |
| Source Code | Fractal_1.3-6.tar.gz (13 Kb) |
| Windows Binary | Pre-compiled zip file |
| Name | HiddenMarkov |
| Title | Hidden Markov Models |
| Version | 1.2-4 |
| Date | 18 Feb 2008 |
| Dependencies | - |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.7.0 for MS Windows |
| Reference Manual | hmm.pdf (361 Kb) |
| Supplementary Notes | notes.pdf (166 Kb) |
| Source Code | HiddenMarkov_1.2-4.tar.gz (39 Kb) |
| Windows Binary | Pre-compiled zip file |
Version 1.1 and higher contain a number of changes to the package. You should read the topics "changes" and "Overview" in the reference manual before replacing earlier versions. Version 1.2 uses Fortran in some of the more numerically intensive routines, giving a considerable increase in speed.
| Name | PtProcess |
| Title | Time Dependent Point Process Modelling |
| Version | 2.0-9 |
| Date | 26 April 2007 |
| Dependencies | - |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | pp.pdf (367 Kb) |
| Source Code | PtProcess_2.0-9.tar.gz (45 Kb) |
| Windows Binary | Pre-compiled zip file |
The following packages each contain a catalogue of earthquake events. Each record represents one event, and contains the spatial location (hypocentre), event time, and event magnitude. The data contained in these SSLib versions of the catalogues are compiled by the seismological observatory given under “Data Source”. Detailed information about the source datasets can be found on the provider's web site listed under “Data Source”. No changes are made to the data contained in these packages. However, some of the datasets available from the seismological observatories contain more variables that have not been included in these SSLib packages.
While the data in these SSLib packages are regularly updated, the providers always retain the right to change their data without notice, and are at all times the only definitive source of the data.
Installation instructions for packages can be found in the Users Guide (§11.2). Package source code can be difficult to install on a MS Windows system, so some windows binaries are also available.
| Name | ssItaly |
| Title | Italy Catalogue of Earthquake Events (Catalogo Della Sismicita Strumentale) |
| Data Source | Istituto Nazionale di Geofisica e Vulcanologia |
| Data Range | 1983 – 2006 |
| Version | 1.0-11 |
| Date | 07 May 2007 |
| Dependencies | ssBase, utils |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | italy.pdf (108 Kb) |
| Source Code | ssItaly_1.0-11.tar.gz (803 Kb) |
| Windows Binary | Pre-compiled zip file |
| Name | ssItalyHist |
| Title | Italy Historical Catalogue of Earthquake Events |
| Data Source | Gruppo di Lavoro CPTI |
| Data Range | 217BC – 2002AD (CPTI04) |
| Version | 1.0-6 |
| Date | 12 Oct 2006 |
| Dependencies | ssBase, utils |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | italyhist.pdf (101 Kb) |
| Source Code | ssItalyHist_1.0-6.tar.gz (160 Kb) |
| Windows Binary | Pre-compiled zip file |
| Name | ssNZ |
| Title | Catalogue of NZ Earthquake Events |
| Data Source | Institute of Geological and Nuclear Sciences |
| Data Range | 1460 – 10 Jan 2008*
(* data are provisional, or incomplete, after 30 Jun 2006) |
| Version | 2.2-1 |
| Date | 11 Jan 2008 |
| Dependencies | ssBase, utils |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | nz.pdf (127 Kb) |
| Source Code | ssNZ_2.2-1.tar.gz (6.2 Mb) |
| Windows Binary | Pre-compiled zip file |
| Name | ssPDE |
| Title | PDE Catalogue of Earthquake Events |
| Data Source | US Geological Survey |
| Data Range | 1 Jan 1964 – 30 Apr 2007 |
| Version | 2.0-36 |
| Date | 10 Jan 2008 |
| Dependencies | ssBase, utils |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | pde.pdf (135 Kb) |
| Source Code | ssPDE_2.0-36.tar.gz (8.0 Mb) |
| Name | ssSCEC |
| Title | SCEC Catalogue of Earthquake Events |
| Data Source | Southern California Earthquake Center (SCEC) |
| Data Range | 1 Jan 1932 – 11 Jan 2008 |
| Version | 1.0-11 |
| Date | 12 Jan 2008 |
| Dependencies | ssBase, utils |
| Tested With
(R CMD check) | R version 2.7.0 for Linux
R version 2.6.2 for MS Windows |
| Reference Manual | scec.pdf (110 Kb) |
| Source Code | ssSCEC_1.0-11.tar.gz (6.3 Mb)
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