Slide Image: A topographic map showing proposed locations of AfricaArray broadband seismic stations (colored circles and triangles) during phase 1 (2005-2007) together with existing broadband seismic stations (red squares) operated by IRIS and similar European organizations.
The map shows country boundaries faintly. On the bottom right side is an elevation key that shows Elevations in meters -- Elevation (m) -- ranging between –9999 and 6000.
The key to the symbols and their number and locations:
GSN/FDSN (red square) – twelve, found throughout Africa
South African BB stations installed by 3/2005 (large black circle) -- eleven, only in South Africa
SP stations to be upgraded to BB stations (large lavender circle) -- three, in Namibia and southeastern Africa
New BB stations to be funded by other proposals (large gray circle) -- five, in western Africa from north to south
Portable BB stations operated by University of Botswana (small blue circle) -- four, in Botswana
SP stations to be upgraded to BB with funding from other sources (triangle) -- ten, in South Africa and southeastern Africa
On the left side of the map is a scale from –40 at the bottom to 10 at the top in increments of 10. The bottom scale goes from 0 on the left to 50 on the right in increments of 10.
Credit: Andrew Nyblade, Department of Geosciences, Penn State University