Pohnpei is often confused with the ancient Italian city of Pompei, rather than a speck in the Pacific Ocean, forming part of the Federated States of Micronesia (FSM), lying more than 5000km (3,200 mi) southwest of Hawaii. Further confusion occurs because the FSM is one of 8 island nations inside the region of Micronesia including, Kiribati, Marshalls, Palau, Nauru, the Northern Marianas, Guam, Wake Island. The FSM is made up of more than 600 islands scattered across over 3.9 million square kilometres (1.5M sq/mi) of the Pacific, divided into the four states of Yap, Chuuk, Pohnpei, and Kosrae. Being mostly low coralline atolls, Pohnpei is different since it's the tip of a 5 million-year-old extinct shield volcano. The entire island is made up of black basalt rock, surrounded by a deep lagoon up to 8km (5mi) wide, circled by many linear, patch and pinnacle reefs. Referred to as the Garden Island of Micronesia, Pohnpei sits in the middle of the 'Pool', the warmest ocean temperatures in the world, fed from the east by the Northern Equatorial Current. Secretly surfed by a lucky few until a Surf Report Issue in Feb 1998, the media have frenzied over some of photos depicting the smoking barrels of P-Pass.