Middle east rift zone, Kilauea Volcano

Surface Features

Map of middle east rift zone, Kilauea Volcano, Hawai`i

Map showing location of main features along the middle east rift zone, Kilauea Volcano, Hawai`i. The middle east rift zone is between Napau Crater and Heiheiahulu. Click on map to see a larger sized-version.

  Pu'u Kahauale`a
  Pua`i`alua Crater
  Pu`u Halulu
  Kalalua cone
  Pu'u Kia`i

More about middle east rift zone

| upper east rift zone | lower east rift zone | Puna Ridge |

Photo of Pua`i`alua Crater, Kilauea Volcano, Hawai`i

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Pua`i`alua Crater (to flow out twice)
Appearing abruptly in the rainforest less than 200 m south of Napau Crater, this circular pit crater is about 120 m deep and 300 m in diameter. The crater collapsed sometime less than about 750 years ago, an estimated age of lava flows that cover the ground surface in this area.

Aerial view of Pu`u Kahauale`a, Kilauea Volcano, Hawai`i

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Pu`u Kahauale`a (the hau tree, or dew, of Le`a)
This small spatter cone is surrounded and partially covered by lava flows erupted during the Pu`u `O`o-Kupaianaha eruption. The cone probably erupted between about 200 and 400 years ago. Today, trees and other plants on the cone form a kipuka, a small green oasis surrounded by `a`a flows.

Photo of Pu`u Halulu, Kilauea Volcano, Hawai`i

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Pu`u Halulu (roaring hill)
Surrounded by lava flows from Pu`u `O`o, this tephra-mantled cone formed in 1983 during episodes 1, 2 and 3 of the Pu`u `O`o-Kupaianaha eruption. It was the main vent during episodes 2 and 3 (February 10-25 and March 21-28, 1983). At the end of episode 3, the spatter and cinder cone was about 60 m tall. Lava flows from later eruptions of Pu`u `O`o in 1986 surrounded and partially filled the central part of the cone. Today, the brown-colored cone rises only 20 m above those younger flows. Fissures broke through Pu`u Halulu briefly in November 1991 during episode 49.

Pu`u Halulu is located about 1.5 km northeast of Pu`u `O`o.


Photo of Pu`u Kalalua, Kilauea Volcano, Hawai`i

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This composite cone is surrounded and partly covered by lava flows erupted from the Kupaianaha vent between 1986 and 1992. The cone may have erupted between 1,500 and 2,000 years ago, although no good ages have been obtained for it.

Photo of Pu`u Kia`i, Kilauea Volcano, Hawai`i

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Pu`u Kia`i (Guardian Hill)
Lava fountains from this spatter cone were visible to residents of Hilo, 30 km to the north, on 29 September 1977. Pu`u Kia`i was the main vent for the 1977 eruption, which lasted from 13 September to 1 October. Fountains as high as 300 m fed a lava flow that moved rapidly southeastward toward Kalapana and eventually reached a point only 700 m from the nearest house, 10 km from the vent. Because of the advancing flow, residents of Kalapana evacuated their homes. See eruption photo of early Pu`u Kia`i.

Aerial view looks down the rift zone toward the northeast.