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Magma: What’s hot and what’s not

| | Nov 9 2017 - 3:40pm | Comments

Scientists at the U.S. Geological Survey’s Hawaiian Volcano Observatory routinely collect lava samples from Kilauea and use the chemistry of these samples to infer the temperature of magma (molten rock below Earth’s surface).

  1. | Posted: Dec 28 2015 - 3:29pm

    Editor’s note: Over the next few weeks, West Hawaii Today will be taking a closer look at each of the volcanoes on and around Hawaii Island. This week is Hualalai volcano.

  2. | Posted: Dec 28 2015 - 3:27pm

    Editor’s note: Over the next few weeks, West Hawaii Today will be taking a closer look at each of the volcanoes on and around Hawaii Island. This week is Kilauea Volcano.

  3. | Posted: Dec 28 2015 - 11:03am

    Editor’s note: Over the next few weeks, West Hawaii Today will be taking a closer look at each of the volcanoes on and around Hawaii Island. This week is Mauna Loa.

  4. | Posted: Dec 28 2015 - 11:02am

    Editor’s note: Over the next few weeks, West Hawaii Today will be taking a closer look at each of the volcanoes on and around Hawaii Island. This week is Loihi Seamount.

  5. | Posted: Dec 20 2015 - 1:31am

    This time last year, Kilauea Volcano’s lava flow was threatening Pahoa. Today, the immediate danger to Puna communities no longer exists, but lava continues to erupt from the Puu Oo vent. So, while the flow is largely out of sight, it should not be totally out of mind.

  6. | Posted: Dec 13 2015 - 1:30am

    Many readers know that Hawaii Island is made of five volcanoes — Kilauea, Mauna Loa, Hualalai, Mauna Kea and Kohala. Those same readers know that such obvious features as the cones that dot Mauna Kea, the Halai Hills and Kulani Cone on Mauna Loa, and Kapoho Cone, Puu Oo and Mauna Ulu on Kilauea are places where eruptions took place. If that’s the case, then why aren’t they called volcanoes? Isn’t a volcano a place where lava reaches the surface of the Earth? Why doesn’t the island have hundreds of volcanoes instead of only five?

  7. | Posted: Dec 6 2015 - 1:30am

    Modern science could not exist without exchange of data and ideas. The exchange can be informal — at meetings and in casual conversations — or formal — in papers or books that can be studied and debated for years to come. The old axiom, publish or perish, is as true for science as it is for scientists.

  8. | Posted: Nov 29 2015 - 1:30am

    In early November, volcano scientists from Hawaii, Chile, Indonesia, Italy and Japan participated in a workshop at the Mount Fuji Research Institute in Japan. Talks and discussions during the workshop were focused on the best ways to protect tourists in active volcanic areas.

  9. | Posted: Nov 22 2015 - 1:31am

    The surface of Kilauea volcano is rarely stationary. There are a variety of processes that each move or change the shape of the volcano and, when active at the same time, create a complex pattern of ground deformation. Satellite-based Interferometric Synthetic Aperture Radar (InSAR) has become a key tool during the last two decades to illuminate this complexity.

  10. | Posted: Nov 15 2015 - 1:30am

    One of the wondrous things about visiting a young lava flow on Hawaii Island is encountering the tenacious plant life that emerges from a barren and rough volcanic environment. Volcanophile hikers know that taking a tumble on the sharp, glassy lava surface can leave a lasting impression. Yet, within a few years, a recent lava flow can host a community of plants that includes ohia lehua (Metrosideros polymorpha) — one of the most common trees in Hawaii and the first native tree to colonize young lava.

  11. | Posted: Nov 7 2015 - 9:43pm

    A lot has changed over the past year on Kilauea Volcano. One year ago, the June 27 flow was threatening to cross Pahoa Village Road and, potentially, Highway 130. Lava destroyed one house on Nov. 10, 2014, and was moving downslope toward many others.

  12. | Posted: Nov 1 2015 - 1:31am

    One year ago, the now infamous June 27 lava flow was headed toward the middle of Pahoa and threatening to cross the main village road and cut off Highway 130 for thousands of residents. During this time, the U.S. Geological Survey’s Hawaiian Volcano Observatory was forecasting that, if the flow continued, it could also cut Kahakai Boulevard and overrun Keonepoko Elementary School.

  13. | Posted: Oct 25 2015 - 1:31am

    It happened again. Did you notice? Last week, a portion of Kilauea Volcano’s south flank slowly slipped seaward. Its movement is part of a recurring phenomenon called a “slow earthquake,” which last occurred on Memorial Day 2012.

  14. | Posted: Oct 18 2015 - 1:31am

    Geologic mapping is considered by some to be “old school” science. By current standards, there’s certainly nothing glitzy or high tech about walking miles across seemingly barren rock or through dense forests to map lava flows.

  15. | Posted: Oct 11 2015 - 1:31am

    Thursday is the third annual Great Hawaii ShakeOut. That day also marks the ninth anniversary of Hawaii’s two most recent damaging earthquakes.