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America’s National Parks

Puzzle 70 · Northwest and the Pacific · Page 98 in print

Hawaii Volcanoes

In 2018, as Kilauea erupted, more than 60,000 earthquakes shook the summit area, and Halemaumau crater deepened from 280 feet to about 1,600 feet.

Jump to a word
A lava tube lit by orange electric light

The entrance to Nāhuku Lava Tube.

NPs Photo/D. Boyle · Public domain (U.S. federal government work) · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

Visitors on a boardwalk over petroglyphs in dark gray rock

The Puʻuloa Petroglyph Field preserves markings in lava rock.

NPS photo · Public domain (U.S. federal government work) · Original record
Image changes

Resized and converted to JPEG for display; no subject alteration.

The words

  1. Halemaumau

    Halemaʻumaʻu, the crater within Kīlauea’s summit caldera.

    National Park Service (opens a new tab)

  2. Holei Sea Arch

    Hōlei Sea Arch, the former coastal arch that collapsed into the Pacific in September 2026.

    National Park Service (opens a new tab)

  3. Kau Desert

    The Kaʻū Desert, the volcanic desert crossed by park trails.

    National Park Service (opens a new tab)

  4. Kilauea

    Kīlauea, the active shield volcano protected by the park.

    National Park Service (opens a new tab)

  5. Mark Twain

    Mark Twain, the author who visited Kīlauea in 1866.

    National Park Service (opens a new tab)

  6. Mauna Loa

    Mauna Loa, the huge shield volcano whose summit lies in the park.

    National Park Service (opens a new tab)

  7. Mauna Ulu

    Mauna Ulu, the lava shield built during Kīlauea’s 1969–1974 eruption.

    National Park Service (opens a new tab)

  8. Nahuku

    Nāhuku, the lava tube formed when molten lava drained away.

    National Park Service (opens a new tab)

  9. Ohia

    ʻōhiʻa, a native tree in the park’s middle-elevation rain forest.

    National Park Service (opens a new tab)

  10. Pahoehoe

    Pāhoehoe, lava with a smooth, ropy surface.

    National Park Service (opens a new tab)

  11. Pele

    Pele, the volcanic deity of Native Hawaiian tradition.

    National Park Service (opens a new tab)

  12. Pu'uloa

    Puʻuloa, the sacred petroglyph field on Kīlauea’s southern flank.

    National Park Service (opens a new tab)

  13. Steam Vents

    Steam vents, places where steam escapes near Kīlauea’s summit caldera.

    National Park Service (opens a new tab)

  14. Thomas Jaggar

    Thomas Jaggar, founder of the Hawaiian Volcano Observatory at Kīlauea.

    U.S. Geological Survey (opens a new tab)

  15. Volcano House

    Volcano House, the historic hotel on Kīlauea’s rim.

    National Park Service (opens a new tab)

Sources

  1. Kilauea - Hawaiʻi Volcanoes National ParkNational Park Service
  2. Hōlei Sea Arch Collapses in Hawaiʻi Volcanoes National Park - Hawaiʻi Volcanoes National ParkNational Park Service
  3. Day Hikes - Hawaiʻi Volcanoes National ParkNational Park Service
  4. Mark Twain at Kīlauea - Hawaiʻi Volcanoes National ParkNational Park Service
  5. Mauna Loa - Hawaiʻi Volcanoes National ParkNational Park Service
  6. Day Hike - Maunaulu / Pu‘uhuluhulu - Hawaiʻi Volcanoes National ParkNational Park Service
  7. Nāhuku Lava TubeNational Park Service
  8. Plants - Hawaiʻi Volcanoes National ParkNational Park Service
  9. Lava - Hawaiʻi Volcanoes National ParkNational Park Service
  10. Pu‘uloa Petroglyphs - Hawaiʻi Volcanoes National ParkNational Park Service
  11. Thomas A. Jaggar, Hawaiian Volcano ObservatoryU.S. Geological Survey
  12. Volcano HouseNational Park Service

How we choose sources and photographs