This satellite image shows the eye of Cyclone Pam heading in a southwesterly direction on March 13, 2015, shortly before the storm struck the South Pacific island nation of Vanuatu (outlined). Cyclone Pam has since left thousands of people homeless and destroyed most of the buildings in Port Vila, Vanuatu's capital city. As the storm approached the city, it had sustained winds up to 265 kilometers (165 miles) per hour, making it the equivalent of a category 5 cyclone.