Three notes: the flows from the current Pu'u O'o eruption are clearly visible on the southeast coast (north of Kilauea proper), and the lava flows from the last eruption of Hualalai (which were big and fast in 1800-1801) can be seen on the lower northwest coast. And the flows from the 1959 flank eruption at Kapoho (which as described in National Geographic was one reason I had an abiding interest in volcanoes most of my life) are seen at the eastern tip of the island.