Natural hazards: surrounded by a zone of violent volcanic and earthquake activity sometimes referred to as the "Pacific Ring of Fire"; subject to tropical cyclones (typhoons) in southeast and east Asia from May to December (most frequent from July to October); tropical cyclones (hurricanes) may form south of Mexico and strike Central America and Mexico from June to October (most common in August and September); southern shipping lanes subject to icebergs from Antarctica; cyclical El Nino phenomenon occurs off the coast of Peru, when the trade winds slacken and the warm Equatorial Countercurrent moves south, killing the plankton that is the primary food source for anchovies; consequently, the anchovies move to better feeding grounds, causing resident marine birds to starve by the thousands because of the loss of their food source; ships subject to superstructure icing in extreme north from October to May and in extreme south from May to October; persistent fog in the northern Pacific can be a maritime hazard from June to December
Environment-current issues: endangered marine species include the dugong, sea lion, sea otter, seals, turtles, and whales; oil pollution in Philippine Sea and South China Sea
Environment-international agreements: party to: none of the selected agreements signed, but not ratified: none of the selected agreements
Geography-note: the major choke points are the Bering Strait, Panama
Canal, Luzon Strait, and the Singapore Strait; the Equator divides the
Pacific Ocean into the North Pacific Ocean and the South Pacific
Ocean; dotted with low coral islands and rugged volcanic islands in
the southwestern Pacific Ocean
@Pacific Ocean:Government
Data code: none; the US Government has not approved a standard for hydrographic codes-see the Cross-Reference List of Hydrographic Codes appendix
@Pacific Ocean:Economy
Economy-overview: The Pacific Ocean is a major contributor to the world economy and particularly to those nations its waters directly touch. It provides low-cost sea transportation between East and West, extensive fishing grounds, offshore oil and gas fields, minerals, and sand and gravel for the construction industry. In 1985 over half (54%) of the world's fish catch came from the Pacific Ocean, which is the only ocean where the fish catch has increased every year since 1978. Exploitation of offshore oil and gas reserves is playing an ever-increasing role in the energy supplies of Australia, NZ, China, US, and Peru. The high cost of recovering offshore oil and gas, combined with the wide swings in world prices for oil since 1985, has slowed but not stopped new drillings.
Communications
Telephone system: international: several submarine cables with network nodal points on Guam and Hawaii