San Francisco Videos & San Fran News: Geography Videos // Current

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The California Way - July 8, 2009

Carl Kasell gives the news on NPR about a new TV advertisement being launched by a marijuana advocacy group in support of Assembly... more

stephenthomson
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JC Orton on the School of the Americas

JC Orton talks about his act of civil disobedience, protesting against the School of the Americas at Fort Benning, Georgia, and... more

djmattwerner
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Pacific Heights; Monday, July 6, 2009

stuff.

stephenthomson
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A Target of Corporate Crime shares his story about Crime & Justice

My name is Gerard Ange', This is my story... about this nightmare I have been living for the last six years. At the time... more

gerardange
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Irina Slutsky and Tracy Swedlow: vlogging pioneers

http://www.sfgate.com/cgi-bin/blogs/abraham/detail?blogid=95&entry_id=42911 -... more

Zennie
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070209 ep.#6: Live Healthy? Find Peace? Judge Not?

I'm interested to know why you get up in the morning, what you're working towards, what you're looking forward to,... more

stephenthomson
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2009 San Francisco Gay Pride Parade

On Sunday (06-28-09) was the 36th Annual San Francisco LGBT Pride Parade. The gay community gathered on a joyful march along... more

ccdvproductions
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The Festival Of The Year!!!!

Dave Matthews Band, Beastie Boys, Ween Modest Mouse and sooooooooo much more 3 day super event Everyone is welcome to... more

TrevTar
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070109 ep.#5: Happy Fiscal New Year

Today, July 1, 2009, marks the beginning of a new budget year. Most states are in the shitter, and California is no exception.... more

stephenthomson
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Doubling bike lanes in SF

Last week measures were taken to double the bike lanes in SF. This a huge victory that came on this month's critical mass... more

Teeefiki
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Commemorating Gay Pride: Saturday Night and Sunday Morning

“Commemorating Gay Pride: Saturday Night and Sunday Morning” is a commemorative, emotionally touching... more

disembedded
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062709 ep.#1: Fuck the Republicans, I see a wolf, 109° F?!

Change begins today. "I'm starting with the man in the mirror."

stephenthomson
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Wes Welker Gets Lit Up

GridironExperts
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MJ tribute in SF dance party

Micheal Jackson tribute dance party in full effect at SF ferry building

ras_menelik
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The Danger of Digging Deeper: geothermal maddness

"Artificial earthquakes triggered by deep-crust drilling operations have always been of interest here, and The New York Times brings the idea back into the media cycle today with a new article – complete with a sidebar titled "The Danger of Digging Deeper."

Don't miss the interactive graphic.So the scene this time is the countryside two hours north of San Francisco, with a company called AltaRock. "Residents of the region, which straddles Lake and Sonoma Counties," we read, "have already been protesting swarms of smaller earthquakes set off by a less geologically invasive set of energy projects there. AltaRock officials said that they chose the spot in part because the history of mostly small quakes reassured them that the risks were limited."
Serious seismic problems arise when you begin to tap into – and then break through – very deep rocks. The reference case for The New York Times here is something that happened in Basel, Switzerland, back in 2006 (a seismic event mentioned briefly in The BLDGBLOG Book). The specific drilling technique used in Basel, we read, was one that "created earthquakes because it requires injecting water at great pressure down drilled holes to fracture the deep bedrock."

The opening of each fracture is, literally, a tiny earthquake in which subterranean stresses rip apart a weak vein, crack or fault in the rock. The high-pressure water can be thought of loosely as a lubricant that makes it easier for those forces to slide the earth along the weak points, creating a web or network of fractures.

A very similar technique, however, will soon be put into widespread use in northern California. There, in the foggy hills and forests, AltaRock "has received its permit from the federal Bureau of Land Management to drill its first hole on land leased to the Northern California Power Agency, but still awaits a second permit to fracture rock."
One resident awesomely points out: “If they were creating tornadoes, they would be shut down immediately. But because it’s under the ground, where you can’t see it, and somewhat conjectural, they keep doing it.”

more at the link as well as some fabulous images"Artificial earthquakes triggered by deep-crust drilling operations have always been of interest here, and The New York Times... more