Region | Longitude range | Magnetic declination |
---|---|---|
Africa | 10° to 40° E | Approximately 0° |
Indian | 60° to 100° E | Approximately 0° |
West Pacific | 110° to 150° E | Approximately 0° |
Central Pacific | 160° E to 160° W | Approximately +10° |
East Pacific | 100° to 140° W | Approximately +10° |
South America | 45° to 75° W | Approximately -20° |
Atlantic | 10° to 40° W | Approximately -15° |