Category Archives: Volcanoes

Electric

This week’s Friendly Friday challenge theme is ‘Electric.’ See more responses here. These three photos are quite different, but linked by this theme.

The top photo shows a view of an electric substation. I like the lines and shapes such facilities offer. But where does this power come from? A good deal is from oil fired plants, but Hawaii is working to get more of its electricity from locally sustainable sources.

In the middle is a view of Hawi wind farm, with Mauna Kea in the background. There are several wind farms of varying sizes in Hawaii including a few on the Big Island. Their contribution to the power grid is small, but growing. Solar power is also a big contributor, on an individual house basis or for whole communities (here).

One source that provided around 25% of the Big Island’s electricity was the Puna Geothermal Venture (PGV). Last year’s eruption shut them down, though, as the bottom photo shows, the flows mostly missed the plant itself. I think a couple of their wells were covered by lava, but most were spared. Currently, they’re in the process of restarting power production. Not everyone here is a fan of this power source. The same can be said about the Honua Ola bioenergy plant, which will generate electricity from burning eucalyptus chips, but which is still to become operational.

Kawaihae breakwater and Hualalai

A view of Hualalai Volcano from the landward end of the breakwater at Kawaihae small boat harbor. I took this when I had a few minutes to spare on the way to work early one morning. I like being out at that time of day, not just for the light, but also for the quiet and the agreeable temperatures.

Mauna Kea telescopes at sunset

This week’s Friendly Friday challenge theme is ‘Remote.’ (See more responses here.)

I’m going for this photo for three reasons. First, Hawaii itself is remote at more than 2,200 miles from the nearest major landmass. The closest U.S. state is actually Alaska, though California is the closest state to the Big Island.

Secondly, Mauna Kea is one of the more remote spots on the island, particularly these days. Protests over building a new telescope on Mauna Kea have resulted in the road up the volcano being closed for some weeks now with no end to the dispute in sight. So if a person wants to go to the top, a long and arduous hike is the only way.

Thirdly, the telescopes on the summit are there to explore the farthest reaches of the universe, and you can’t get more remote than that.

Fissure 8

This time last year, the newest eruption of Kilauea Volcano was still going strong in the Puna district of the Big Island. The previously active vents, in Halemaumau Crater and at Pu’u O’o, drained of lava at the end of April. Lava then moved underground, down the east rift zone, toward the southeast tip of the island. It resurfaced in May in Leilani Estates.

By the end of May, 24 fissures had discharged lava. Two of those sent flows down to the coast, but at the end of May the main eruption settled on Fissure 8. A river of lava flowed northeast, inundating Highway 132 and reaching the ocean at Kapoho Bay in early June. This flow continued into August, but by the end of that month all activity had more or less ceased. In all, more than 700 homes were destroyed during the eruption, but more than 800 acres of new land had been formed.

These photos show Fissure 8, the source of the main flow. The top photo shows Fissure 8’s location, bordered by houses in Leilani Estates that escaped destruction during the eruption. In the middle, the main crater and the ‘canal’ that channeled the flow toward the coast. Below, another view of Fissure 8 and the wasteland of destruction surrounding it.

PBS’s NOVA put out a show about the eruption earlier this year with some great information about what was actually going on during the eruption. It might be accessible on their site, PBS.org, or search online for the title of the show: PBS Nova Kīlauea: Hawaiʻi on Fire.

Pu’u Wa’awa’a views

This week’s Sunday Stills challenge theme is ‘Great Outdoors.’ (See more responses here.) When I think of the great outdoors, I think of hiking, and one of my favorite hikes on the Big Island is up Pu’u Wa’awa’a. It’s an 8-mile round trip and tops out at just under 4,000 feet. On a good day, the hike offers great views, not only from the top, but also on the way up and down. And there are several benches where a person can rest and take in those views, including a couple on the summit.

The top photo shows the view north from around 3,500-feet elevation, with Tamaki Coral in the foreground and Kohala Mountain in the background. The bottom photo is a view from 100 feet or so below the summit looking east toward Mauna Kea.

The hike can also include many native trees and plants as well as a variety of wildlife. There are domestic sheep, cattle, and horses, as well as wild pigs and goats. When the trees are in bloom, they’re rich with insects and birds including several native varieties.

To top it off, most of the times I’ve visited, usually in the early morning, I’ve had the place to myself.

For more information about Pu’u Wa’awa’a and its trails, go to puuwaawaa.org.

Kilauea Iki Trail

This week’s Sunday Stills challenge theme is ‘Paths.’ (See more offerings here.)

Kilauea Iki Trail is one of the more popular trails in Hawaii Volcanoes National Park. But last year’s volcanic activity, with numerous earthquakes, resulted in the park being closed for several months. Even after it reopened in September 2018, many parts of the park remained closed because the areas were too unstable to be opened to the public.

The Kilauea Iki Trail was one of those areas along with Thurston Lava Tube and Jaggar Museum. The latter two locations are still closed and Jagger Museum may never be reopened, but the Kilauea Iki Trail is currently listed as mostly open. Given that this is a loop trail, it would be wise to check ahead and find out what ‘mostly open’ means.

These photos were taken during a hike I took a couple of years back. The top photo shows the view from the part of the trail that follows the rim of the crater before it descends to the crater floor. The second photo shows two hikers heading out across the crater floor. The dark hill in the background is Pu‘u Pua‘i where a 1959 eruption poured lava out into the crater. The third photo shows hikers near the center of the crater where the path winds through broken areas of the crater floor. Below, cairns mark the trail across a flat area of the crater that leads to the switchback trail which takes hikers back up to the crater rim.

For more information about Hawaii Volcanoes National Park, go to nps.gov/havo/.

Keck 1 and 2 telescopes

This week’s Friendly Friday challenge theme is ‘Twins.’ (See more responses here.)

These are the two telescopes of the W. M. Keck Observatory on Mauna Kea. Keck 1 began operation in November, 1990, while Keck 2 made its first observations in October 1996. Each telescope’s 10-meter primary mirror is made up of 36 segments, hexagonal in shape. Not that these segments are small themselves. Each one is 1.8 meters wide and weighs half a ton.

The telescopes can accommodate a wide variety of instruments, such as cameras and spectrometers, and are considered to be the most scientifically productive in the world.

For more information about the W. M. Keck Observatory, go to www.keckobservatory.org.