Uh-Oh! In the News

The part of the church where the silliest things happen. Conversations that sound like they belong in the youth room will be moved here.
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wosbald
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Re: Uh-Oh! In the News

Post by wosbald » Fri Sep 29, 2017 10:02 am

+JMJ+

Rockfall at Yosemite's El Capitan '10 times bigger' than slide that killed tourist a day earlier
A massive hunk of rock fell off Yosemite National Park’s El Capitan on Thursday, a day after a rockfall in the same area of the granite monolith killed a British tourist and seriously injured his wife, park officials said.

One person was hurt in Thursday’s slide, though it was unclear if the individual was a climber or a motorist. Tourists were asked to use Southside Drive to exit Yosemite Valley, as the rockfall left Northside Drive closed.

[…]

On Wednesday, a sheet of granite the height of a 13-story building — about 130 feet long, 65 feet wide and in some sections 10 feet thick — separated from the rock face and dropped to the base of El Capitan, officials said.

[…]

In Yosemite, these precarious attachments — geologists call them “exfoliations” — fall at a rate of one a week, on average. Most often, they collapse because water repeatedly freezes and thaws in the cracks, destabilizing the cliffs. Sometimes they fall apart during an earthquake.

Other times, though, rockfalls happen on sunny days with no sign of rain or seismic activity. Now geologists from the U.S. Geological Survey and the National Park Service have found a potential cause for the seemingly spontaneous rockfalls: heat.

As the temperature rises from morning to afternoon, the thin outer layer of rock moves ever so slightly away from the cliff, then returns as the evening cools.

As the cliffs inhale and exhale, so to speak, the tips of the cracks weaken. Over time, the cracks slowly open wider and the stress from the heat can prompt the rocks to fall.



https://www.youtube.com/watch?v=UV_5OonoY30




"In the end, My Immaculate Heart will triumph." - Our Lady of Fatima

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wosbald
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Re: Uh-Oh! In the News

Post by wosbald » Thu Oct 12, 2017 10:08 am

+JMJ+

‘Ring of Fire’ volcanos remind Asia of seismic peril
Image

The horseshoe-shaped string of active volcanos bounding the Pacific Ocean has lived up to its “Ring of Fire” name in the past month, sparking mass evacuations in Indonesia and Vanuatu and now setting parts of southwestern Japan on edge. The 450 or so volcanos that make up the “Ring of Fire” are an outline of where the massive Pacific Plate is grinding against other plates that form the Earth’s crust, creating a 40,000-kilometer (25,000-mile) -long zone prone to frequent earthquakes and eruptions.
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JAPAN
The Shinmoedake volcano in southwestern Japan started erupting Wednesday for the first time in about six years. According to Japanese broadcaster TBS, an ash plume rose 1,700 meters (5,580 feet) from the crater Thursday and ash fell on cities and towns in Miyazaki prefecture. …
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BALI
More than 140,000 people fled Mount Agung on the Indonesian island of Bali after its alert status was raised to the highest level on Sept. 22. Hundreds of tremors daily from the mountain indicate magma is rising inside it, prompting authorities to warn a powerful eruption is possible. …
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VANUATU
The entire population of a Pacific island was evacuated in the space of a few days in late September and early October to escape the belching Manaro volcano. The 11,000 residents of Ambae island were moved by every boat available to other islands in Vanuatu, a Pacific archipelago nation, where they’re living in schools, churches and tents. …




"In the end, My Immaculate Heart will triumph." - Our Lady of Fatima

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UncleBob
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Re: Uh-Oh! In the News

Post by UncleBob » Sun Oct 15, 2017 7:36 pm

"One man's theology is another man's belly laugh." - Robert A. Heinlein

"Many of the points here, taken to their logical conclusions, don't hold up to logic; they're simply Godded-up ways of saying "I don't like that." - Skip

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