Note, this repository consists of experimental code that is still under development.
ShakeMap is a system for rapidly characterizing the extent nad distribution of strong ground shaking following significant earthquakes. The current stable production version of ShakeMap (V3.5) is largely written in Perl, but also makes use of GMT (Generic Mapping Tools), MySQL, and many other programs. The manual for ShakeMap V3.5 can be found here
The manual includes an both a Technical Guide and and User's Guide. Installation instructions can be found in the chapter titled Software & Implementation Guide.
This repository hosts the ShakeMap V3.5 manual and is also where we refactoring the code base into Python. The core ShakeMap code, approaching fifteen years old, was overdue for a major overhaul to more organically incorporate (or eliminate) the many extensions that had been added over its lifetime, and to facilitate several new demands from ShakeMap’s expanded role as a global provider of post-earthquake information and earthquake scenarios, and as the input to loss modeling software.
ShakeMap was originally written for use at the Southern California Seismic Network. Over time, it has been adopted by many national and international seismic networks as the hazard mapping tool of choice. It is now in operation at all regional seismic networks within the United States, and the Global ShakeMap System at the USGS’s National Earthquake Information Center in Golden, Colorado. The varied nature of its national and international installations has required extensive modifications to the original source code. Additional uses of ShakeMap, such as for scenario earthquakes and the ShakeMap Atlas, have also required ongoing modification of the code.
- Mac OSX or Linux operating systems
- Python 3
- Python libraries: numpy, scipy, rasterio, fiona, xlrd, pandas, basemap, basemap-data-hires, shapely, h5py, gdal, descartes, oq-hazlib, neicio, MapIO, matplotlib, jupyter, pytables, lxml
One of the significant factors driving the rewrite of ShakeMap into the Python language was the availability of the library of Ground Motion Prediction Equations (GMPEs) and other tools incorporated into the OpenQuake ([OQ](www.globalquakemodel.org/openquake/about/)) hazard library ([oq-hazardlib](github.com/gem/oq-hazardlib)). The OQ hazard library provided us with a broad range of well-tested, high performance, open source global GMPEs. Due to constraints imposed by the software architecture of earlier implementations of ShakeMap, the development and validation of GMPE modules is time consuming and difficult, which restricted the quantity and timeliness of the available modules. The oq-hazardlib provides a broad array of current GMPE and related hazard modules, as well as a framework for easily adding new modules (whether by GEM or ShakeMap staff), jumpstarting our efforts to re-implement ShakeMap.