USS Arizonaâs entire band was lost in the attack. Almost half of the casualties at Pearl Harbor occurred on the naval battleship USS Arizona, which was hit four times by Japanese bombers and eventually sank. Among the 1,177 crewmen killed were all 21 members of the Arizonaâs band, known as U.S. Navy Band Unit (NBU) 22.
Are the three major plates that border the South American Plate. The Nazca Plate is subducting under the South American Plate. The boundary between the African Plate and the South American Plate is a divergent boundary. The South American Plate is moving at more than 15 cm/yr. 1. The center of the South American Plate is the city of Brazilla, in Brazil.
Mid-Atlantic Ridge. The North American and Eurasian Plates are moving away from each other along the line of the Mid Atlantic Ridge. The Ridge extends into the South Atlantic Ocean between the South American and African Plates. The ocean ridge rises to between 2 to 3 km above the ocean floor, and has a rift valley at its crest marking the location at which the two plates are moving apart. The Mid Atlantic Ridge, like other ocean ridge systems, has developed as a consequence of the divergent motion between the Eurasian and North American, and African and South American Plates. As the mantle rises towards the surface below the ridge the pressure is lowered (decompression) and the hot rock starts to partially melt.