New Understanding on the Tectonics and Seismogenesis in the World’s Premier Site of Reservoir Triggered Seismicity in the Koyna-Warna Region from Study of Earthquake Focal Mechanisms During the Last Five Decades

N Purnachandra Rao, National Center for Earth Science Studies, Thiruvananthapuram, India and Dodla Shashidhar, National Geophysical Research Institute, Hyderabad, India