No, Marshall Islands is not further west than the prime meridian (zero degrees latitude).
Yes, Marshall Islands is further east than the prime meridian (zero degrees latitude). The midpoint of Marshall Islands is further east by approximately 11,635 miles (18,725km).
Yes, Marshall Islands is further north than the equator. The midpoint of Marshall Islands is further north by approximately 493 miles (793km).
No, Marshall Islands is not further south than the equator.