Mt. Kilauea

Kīlauea
Puʻu ʻOʻo, a vent on the east rift zone of the Hawaiian volcano Kīlauea
Highest point
Elevation	4,091 ft (1,247 m)
Prominence	50 ft (15 m)
Coordinates	19°25′16″N 155°17′12″W / 19.421097472°N 155.286762433°W / 19.421097472; -155.286762433Coordinates: 19°25′16″N 155°17′12″W / 19.421097472°N 155.286762433°W / 19.421097472; -155.286762433
Geography
Kīlauea
Location	Hawaiʻi, United States
Geology
Age of rock	300,000 to 600,000 years old
Mountain type	Shield volcano, hotspot volcano
Volcanic arc/belt	Hawaiian–Emperor seamount chain
Last eruption	January 3, 1983 – present

Kīlauea (/ˌkiːlaʊˈeɪə/, US: /ˌkɪləˈweɪə/; Hawaiian: [tiːlɐwˈwɛjə]) is a currently active shield volcano in the Hawaiian Islands, and the most active of the five volcanoes that together form the island of Hawaiʻi. Located along the southern shore of the island, the volcano is between 300,000 and 600,000 years old and emerged above sea level about 100,000 years ago.

It is the second youngest product of the Hawaiian hotspot and the current eruptive center of the Hawaiian–Emperor seamount chain. Because it lacks topographic prominence and its activities historically coincided with those of Mauna Loa, Kīlauea was once thought to be a satellite of its much larger neighbor. Structurally, Kīlauea has a large, fairly recently formed caldera at its summit and two active rift zones, one extending 125 km (78 mi) east and the other 35 km (22 mi) west, as an active fault of unknown depth moving vertically an average of 2 to 20 mm (0.1 to 0.8 in) per year.