Did the volcanic islands in hawaiian rise from ocean floor?

Yes. It is widely believed that the volcanic islands in the Hawaiian archipelago rose from the ocean floor. The Hawaiian islands are located in the middle of the Pacific plate and were formed by volcanic eruptions over millions of years. The volcanoes are formed by the movement of the Pacific Plate over a hotspot in the Earth's crust. As the plate moved, new volcanoes formed and the older ones were submerged beneath the ocean. Over time, the volcanoes built up and formed the islands we see today.