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Geology Picture of the Week, March 16-22, 2008: The More Things Stay the Same...
Hawaii Volcano Observatory Kilauea Update Page | 03/19/2008 | USGS

Posted on 03/20/2008 7:46:24 AM PDT by cogitator

The more things stay the same... the more they change, of course. The famous Halemaumau crater (formerly the site of an active lava lake) has had a couple of changes, and yesterday a new steam vent exploded violently, casting rocks about. Below is an image of the crater, half-size (click for full), with the new steam vent. The link below is to the images page, where you can see other pictures of what happened.

In the first comment, the picture and link is from Stromboli Online, which recently visited Erta Ale in inhospitable Ethiopia, which hosts an active lava lake right now.

Current images


TOPICS: Arts/Photography; Education; Science; Travel
KEYWORDS: boom; halemaumau; kilauea; volcano
Stromboli Online Erta Ale section


1 posted on 03/20/2008 7:46:26 AM PDT by cogitator
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To: 2Trievers; headsonpikes; Pokey78; Lil'freeper; epsjr; sauropod; Miss Marple; CPT Clay; ...

** ping **


2 posted on 03/20/2008 7:55:55 AM PDT by cogitator
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To: cogitator
I wonder why Hawaii isn't getting all of its electrical energy from geothermal heat? If its feasible anywhere, it should be there. Is it really that difficult?
3 posted on 03/20/2008 8:04:10 AM PDT by SampleMan (We are a free and industrious people, socialist nannies do not become us.)
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To: SampleMan

Where would they get the water?


4 posted on 03/20/2008 8:35:10 AM PDT by Old Professer (The critic writes with rapier pen, dips it twice, and writes again.)
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To: cogitator
Global Warming belch.

A virgin sacrifice is needed to satiate the Volcanic God!

Since Algorged mental hymen is still intact he is my choice!

5 posted on 03/20/2008 8:35:27 AM PDT by Young Werther (Julius Caesar (Quae Cum Ita Sunt. Since these things are so.))
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To: Old Professer
Duh!!!!!

I do believe there's a little water available nearby. It's called the

PACIFIC OCEAN

6 posted on 03/20/2008 8:37:23 AM PDT by Young Werther (Julius Caesar (Quae Cum Ita Sunt. Since these things are so.))
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To: Young Werther

Kind of hard on steam turbines’ innards.


7 posted on 03/20/2008 8:52:46 AM PDT by Old Professer (The critic writes with rapier pen, dips it twice, and writes again.)
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To: Old Professer
My brother lives about 10 miles from Mauna Lea (sic). A 5 gallon jug of drinking water costs over $50. Why. Water wells must be drilled to over 5000' depth in order to gather potable water. The sea water is filtered through those thousands of feet of volcanic ash, (after all the islands are vocanic in nature), and is purified. All the homes catch rainwater for bathing, washing dishes and clothes and other non drinking needs.

When my brother built his home he used his water treatment knowledge to use the rainwater from his cistern for drinking as well.

I offered to finance a business where he could deliver potable water at a cost cheaper than the $50/jug price but he didn't see the profitability so he demurred. Of course he has a nice large lot and planted coffee trees which means he doesn't have to go to Starbucks!!!

8 posted on 03/20/2008 9:25:31 AM PDT by Young Werther (Julius Caesar (Quae Cum Ita Sunt. Since these things are so.))
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To: Old Professer
Where would they get the water?

The same place they currently get water to produce electricity. Or is everything their produced by gas turbines?

In any event, they could use the nearly inexhaustible heat to desalinate water.

9 posted on 03/20/2008 9:29:41 AM PDT by SampleMan (We are a free and industrious people, socialist nannies do not become us.)
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To: SampleMan
Puna Geothermal Venture

Based on a quick read, supplies about 20% of the Big Island's electricity requirements. They can't operate too close to the national park. The site indicates that they generate 30 MW and are going to expand another 8 MW.

10 posted on 03/20/2008 9:34:51 AM PDT by cogitator
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To: Young Werther
Mauna Lea

Just to help (or maybe what you wrote was deliberate, if so, sorry)

Mauna Kea -- big extinct volcano with astronomical observatories on top; world's highest mountain from base to peak.

Mauna Loa -- big still-active volcano (and we're waiting for the next proof of its activity; its overdue)

11 posted on 03/20/2008 9:37:04 AM PDT by cogitator
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To: cogitator
Thanks for the info. They can't operate too close to the national park.

Lest they cut down on overall polution. I'm thinking that a Geothermal plant should have little to no negative impact.

12 posted on 03/20/2008 9:57:40 AM PDT by SampleMan (We are a free and industrious people, socialist nannies do not become us.)
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To: cogitator

Reading through the posts, it’s amazing what all we learn on FR.


13 posted on 03/20/2008 10:15:03 AM PDT by mtbopfuyn (The fence is "absolutely not the answer" - Gov. Rick Perry (R, TX))
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To: SampleMan
I'm thinking that a Geothermal plant should have little to no negative impact.

I remember reading that they have to be a distance from the park so as not to sap the strength of the volcanic activity in the park. While this seems silly for Hawaii (maybe), it was a bigger concern for potential Yellowstone hydrothermal; both effects on the features and the effect of having an industrial site near the park.

14 posted on 03/20/2008 10:39:50 AM PDT by cogitator
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