Showing posts with label Volcanoes. Show all posts
Showing posts with label Volcanoes. Show all posts
Monday, June 12, 2023

Why does smooth pāhoehoe lava suddenly change to crystal-filled ‘a’ā lava? A new theory.

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 When water flows down a gradual stream over a generally flat bottom, it’s clear and transparent, but when it hits a steep slope like rapids...
Friday, February 3, 2023

Can sea level change promote volcanic activity in Hawai'i? This theory suggests it can.

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 There’s this odd thing about Hawaiian volcanic activity—secondary volcanism. This is the appearance of new eruptions long after the main ...
Saturday, December 31, 2022

The volcanoes: Kīlauea reinflating, Mauna Loa resting

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Two weeks after their double eruption, Kīlauea and Mauna Loa are handling the holidays differently, although neither is erupting. Mauna Lo...
Monday, December 26, 2022

Keeling Curve, key climate change measure, restored after Mauna Loa flow interuption

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  The Keeling Curve is back, after a brief volcanic interlude. The world’s longest-running measurement of changes in carbon dioxide in the a...
Friday, December 23, 2022

Volcanic mystery solved: Mauna Loa and Kīlauea are connected 25 miles under Pāhala

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 One deep mystery about our Hawai’i volcanoes has been solved. The mystery was this: Do Mauna Loa and Kīlauea have independent connections...
Tuesday, December 13, 2022

Eruption over, both Kīlauea and Mauna Loa pau

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  The storied double eruption of K ī lauea and Mauna Loa is over, with the official notice today, December 13, 2022, that both eruptions hav...
Sunday, December 11, 2022

Mauna Loa quiet, but maybe not done erupting

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  Things are confusing atop Mauna Loa. There is no longer any fresh lava erupting anywhere on the surface of the mountain, either at the s...
Saturday, December 10, 2022

Mauna Loa is like "Jaws." Something's moving below the surface. When will it rise?

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  (Image: Webcam shot at Mauna Loa's Fissue 3, taken this morning, December 10, 2022. Credit: USGS.) The Mauna Loa eruption right now is...
Friday, December 9, 2022

Quiet on the Mountain: Mauna Loa in a pause? Not quite.

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Things are pretty calm up on Mauna Loa, with the active fissure glowing, but not aggressively fountaining, and still apparently producing a ...
Thursday, December 8, 2022

Mauna Loa eruption scaling back

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The Saddle Road appears safe for now from being engulfed in lava. Mauna Loa dramatically reduced its eruption lava volume overnight from Dec...
Wednesday, December 7, 2022

Is the Saddle Road toast?

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 The Saddle Road is toast. A photo from earlier in the eruption, from an overflight the morning of November 30, 2022.  USGS image by K. Mull...
Tuesday, December 6, 2022

Volcanic pyrotechnics: Mauna Loa is back

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  It’s been a while since the night sky over the highest parts of Hawai’i Island were lit bright orange by something other than the sun. (...
Thursday, November 7, 2019

Blazing sunsets, redux

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Raikoke Volcano in the Kuril Islands in the northwest Pacific, taken June 22, 2019. Credit: NASA. Those spectacular Hawaiian sunset ph...
Monday, September 16, 2019

Those blazing new internet sunsets? Thank a couple of summer volcanic eruptions.

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Great sunsets are the new kitties on social media. Lots of folks are posting their photographs of  spectacular glowing orange and purp...
Tuesday, July 2, 2019

Pele slipping upslope to Mauna Loa, pumping magma, USGS raises caution level yellow

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Peleʻs Kilauea home Halema`uma`u. Credit: USGS Is Madame Pele shifting residences, slipping upslope from her K ī lauea playground to h...
Sunday, January 27, 2019

Kīlauea's 2018 eruption--what happened, and how soon can it come again?

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The 2018 Kīlauea eruption is less of a news story months after it stopped, but what the heck happened there, and can it happen again soo...
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Friday, July 6, 2018

Kīlauea: Dramatic, long-term changes continue. Catastrophic event possible but unlikely.

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It is tough to grasp the enormous changes going on at Kīlauea volcano, including the impact on the prized national park as well as the c...
Monday, June 11, 2018

Hawai`i data shows CO2 at record levels in atmosphere: and growing faster than ever

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Annual CO2 growth rate. Source: NOAA, Scripps Carbon dioxide levels in the atmosphere continue to grow at a record rate, promising tha...
Wednesday, November 8, 2017

Kalalau ridge see-through hole got bigger this summer

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Keanapuka feature at center bottom. Credit: Photo by Jan TenBruggencate A ridge on Kalalau Valley’s northeast wall has long had a hole ...