Figure 1
From: Crustal structure and seismic anisotropy of rift basins in Somaliland
(a) Geology map of northern Somalia, modified from13. The map shows the location of the five broadband seismometers (green triangles) deployed in Somaliland. SRTM15 + data is used to display the elevation and bathymetry19. The location of two drilled wells BD-1 (Biyo Dader-1) and DS-2 (Dagah Shabel-2) are shown. Inset is a location map of Somalia (the green box illustrates the study area) and the surrounding region within the tectonic framework of surrounding plates. The red arrow shows the absolute plate motion of major tectonic plates20. (b) Azimuthal equidistant projection map centred at the seismic station in Burao showing geographic distribution of teleseismic events (yellow circle). (c) and (d) Rose diagrams for distance windows of 30–98° and 90–130° showing the number of teleseismic events as a function of backazimuth. Between September 2020 and August 2020, a total of 354 events occurred in the azimuthal distance window of 30–98°, while 198 events occurred in the 90–130° distance window. The figure was generated using Generic Mapping Tools (GMT)21.
