Figure F1. A. Area map of the Iheya North Knoll, showing proposed drill sites (INH-1C, INH-1D, INH-2C, INH-2D, INH-3C, INH-3D, INH-4D, and INH-5D), Expedition 331. Inserts show the Iheya North Knoll in relation to Okinawa, and Okinawa in relation to major tectonic components. (Continued on next page.)