Sunday | November 19, 2017
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Drive along Saddle Road reveals outstanding volcanic geology

| | Nov 19 2017 - 8:43pm | Comments

Route 200, the Daniel K. Inouye Highway, crosses Humuula Saddle, which separates Mauna Kea and Mauna Loa, the two largest volcanoes on Hawaii Island. This Saddle showcases outstanding volcanic geology and is easy to reach for “roadside geologists.”

  1. | Posted: Mar 4 2017 - 8:04pm

    This is the story of how a new concept — slowly pulsing magma supply to Kilauea — emerged from observations of the Overlook lava lake in Halemaumau.

  2. | Posted: Feb 26 2017 - 12:05am

    If something is hot enough, it emits light in wavelengths that are visible to the human eye. This is called incandescence. If you’ve ever seen the red-, orange-, or yellow-ish glow from Kilauea Volcano’s lava lake or an active lava flow, then you have observed incandescence.

  3. | Posted: Feb 18 2017 - 9:34pm

    Unknown to thousands of visitors in Hawaii Volcanoes National Park, a simulated Mars landing mission unfolded on Kilauea Volcano for two weeks in September.

  4. | Posted: Feb 10 2017 - 11:06am

    If you’re on Oahu and notice an unusual airplane landing and taking off from the Kaneohe Bay Marine Corps Base, you might be seeing NASA’s ER-2 aircraft.

  5. | Posted: Feb 3 2017 - 12:00pm

    The “firehose” flow is no longer visible at the Kamokuna ocean entry, Hawaiian Volcano Observatory scientists reported Thursday.

  6. | Posted: Feb 3 2017 - 10:23am

    HILO — The seaside cliff near the Kamokuna lava ocean entry was preparing to split as a ground crack widened to more than 2 feet, geologists said Thursday.

  7. | Posted: Feb 3 2017 - 10:08am

    During Hawaii Island’s 8th annual Volcano Awareness Month (January 2017), we offered a series of Volcano Watch articles about four of the five U.S. Geological Survey (USGS) volcano observatories: Cascades (CVO), Alaska (AVO), California (CalVO), and Yellowstone (YVO). Today, we complete the series with a brief history of America’s first volcano observatory — the Hawaiian Volcano Observatory (HVO).

  8. | Posted: Jan 27 2017 - 11:24am

    Hawaii Island’s 2017 Volcano Awareness Month is almost over, and our Volcano Watch series about U.S. Geological Survey volcano observatories and their connections to Hawaii is also coming to an end. This week, we visit the observatory that monitors a volcano that produced some of the largest eruptions known on Earth — Yellowstone!

  9. | Posted: Jan 20 2017 - 7:47pm

    This month, our Volcano Watch articles are exploring U.S. Geological Survey (USGS) volcano observatories and their connections to Hawaii. This week: California, here we come!

  10. | Posted: Jan 13 2017 - 4:41pm

    As part of Volcano Awareness Month, our January Volcano Watch articles are exploring the U.S. Geological Survey’s volcano observatories and their connections to Hawaii. We continue this week with a visit to Alaska.

  11. | Posted: Jan 6 2017 - 10:16am

    It’s January 2017, and, in addition to wishing you hauoli makahiki hou (happy New Year), the USGS Hawaiian Volcano Observatory (HVO) welcomes you to the eighth annual Volcano Awareness Month on the Island of Hawaii! Throughout the month, HVO, in cooperation with Hawaii Volcanoes National Park and the University of Hawaii, will offer public talks around the island. For the complete schedule, please visit HVO’s website (

  12. | Posted: Jan 4 2017 - 8:45am

    HILO — A new viewing area for the Kamokuna lava ocean entry opened Tuesday after two days of closure due to a New Year’s Eve lava delta collapse.

  13. | Posted: Jan 3 2017 - 8:18am

    A large section of the 26-acre lava delta formed by the 61g lava flow collapsed into the ocean around 2:45 p.m. on New Year’s Eve, launching showers of volcanic rock into the air, and creating a flurry of large waves that eroded away a portion of the older sea cliff and viewing area.

  14. | Posted: Dec 30 2016 - 5:01pm

    Jan. 3, 2017, marks the 34th anniversary of the start of Kilauea Volcano’s East Rift Zone (Puu Oo) eruption. Given the duration of this eruption, people who were children when it began are now old enough to be parents, or possibly, grandparents. And, many Hawaii Island residents have never known a time when Puu Oo was not erupting.

  15. | Posted: Dec 26 2016 - 9:35am

    The simulation of real and imaginary worlds for video games, movies, and other purposes has become big business in the 21st century. Virtual reality technology is improving rapidly, but the basic concept is not new.