Because Mauna Loa and Kīlauea are active volcanoes, the island of Hawaii is still growing. Between January 1983 and September 2002, lava flows added 543 acres (220 ha) to the island.

How fast is Hawaii growing?

As the Pacific Plate continues to move at a rate of roughly seven centimeters (2.75 inches) per year—about the rate at which fingernails grow—new volcanic material is building up over the Hawaiian hot spot. This material will eventually form another Hawaiian island.

Is Hawaii's Big Island growing?

The Island of Hawaiʻi, or Big Island, is the youngest and largest of the Hawaiian islands – and it is still growing! Since the still ongoing 1983 eruption of the Kilauea volcano more than 600 acres have been added to the island. … It also is the biggest island in the United States.