Foto de stock de Super Typhoon Choi-wan over the Mariana Islands.

September 15, 2009 - Super Typhoon Choi-wan centered over the northern arc of the Mariana Islands in the western Pacific Ocean, with the larger islands of Guam, Saipan, and Tinian located on the southern edge of the storm. The islands north of Saipan are volcanic and are either unoccupied or sparsely populated. Choi-wan is a perfect circle with bands of clouds pin-wheeling around the dense center. The dark blue surface of the Pacific Ocean is visible through the clear eye, which is defined by a towering wall of clouds.