WIZMAP II ISC EDITION Version A by RMW Musson British Geological Survey, West Mains Road, Edinburgh, EH9 3LA, UK tel: (44)/(0)-131-650-0205 fax: (44)/(0)-131-667-1877 email: rmwm@bgs.ac.uk Wizmap II ISC Edition is a PC/Windows-based program for viewing and exploring earthquake data files in ISF format. Its main functions are: a) spatial display of earthquake data in the form of maps; b) the ability to interrogate maps to identify particular events; c) the ability to display cross-sections in 2D or 3D showing the depth of hypocentres; d) the ability to define polygonal areas and extract earthquake statistics for those areas. Full details are given in the manual, which is included in the installation. Version B of this program is identical to Version A except that version B has an upper limit of 20,000 earthquakes and runs better on lower specification PCs. Version A can handle 180,000 events at a time. Users should check that they have administrator privileges before they run the installation program (setup.exe). This is particularly relevant when a user is in a networked environment. They should check with the system administrator/manager if they have any privilege problems on installation. This program is the copyright of the Natural Environment Research Council (NERC). It is distributed free of charge to users of ISC data. No warranty of any kind, express or implied, is given in respect of this program and the accompanying data sets. Anything that happens as a result of running this program is your own responsibility totally. Neither the author, nor BGS, nor NERC, nor ISC accept any liability for any defects in this program or the accompanying data, or any consequences of the use of this program or the accompanying data. The coastline data supplied with this program are ultimately derived from the WDB-II data base of the US Central Intelligence Agency; this version was processed by Global Associates Ltd and supplemented with extra data from Charles Culberson, and then reformatted by myself with only minor edits. Thanks are due to Fred Pospeschil, Antonio Riveria and Paul Anderson for making this very useful data available.