| Marpi Reef | |
| Pushpin Map: | Pacific Ocean |
| Relief: | y |
| Location: | Northern Mariana Islands, United States |
| Coordinates: | 15.425°N 145.85°W |
| Elevation M: | --> |
| Surface Elevation M: | --> |
Marpi Reef or Marpi Bank is a narrow seamount lies 28km (17miles) north of Saipan. With length of 9km (06miles) and 4km (02miles) in width, the reef is generally similar to the Tatsumi Reef south of Tinian in terms of orientation in a northeast to southwest. The peak of the seamount is at 26 fathoms or 53 m under water surfaces.
It is one of fishing points in the region, and various cetaceans (whales and dolphins) migrate and live in the waters including humpback whales.[1] [2]