Sunday, December 5, 2010

[Geology2] QUITO, Ecuador Villagers Evacuated as Ecuador Volcano Erupts



  • A column of smoke and ashes comes out from the Tungurahua volcano in Pelileo, Ecuador, Dec. 4, 2010.

    A column of smoke and ashes comes out from the Tungurahua volcano in Pelileo, Ecuador, Dec. 4, 2010.  (AP Photo/Patricio Realpe)


QUITO, Ecuador

Villagers Evacuated as Ecuador Volcano Erupts

Tungurahua Volcano Is Billowing Ash into Sky and Sending Super-Hot Pyroclastic Flows Surging Down Its Slopes



(AP) 
The Tungurahua volcano in Ecuador is billowing ash into the sky and sending super-hot pyroclastic flows surging down its slopes, causing authorities to evacuate nearby villages.

Hugo Yepez, director of Ecuador's Geophysical Institute, says no one has been injured nor any village damaged. He says people within 8 miles of the volanco's center were evacuated Saturday as a precaution.

An eruption of ash from Tungurahua last May caused a one-day shutdown of the international airport at Ecuador's largest city, Guayaquil. Thousands of people in near the volcano also were evacuated.

The volcano is 95 miles southeast of Quito, the capital. In 2006, an eruption buried entire villages and killed at least four people.

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[Geology2] Geotagging your publications



It is now possible to geotag your publications. These appear on your own profile page as well as on the main Geotags Map at COSIS.net. Thus, people who are doing research in the same region may easily find each other and start a cooperation.

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Saturday, December 4, 2010

[californiadisasters] On This Date In CA Weather History (December 4)



On This Date In California Weather History....

1992: A big storm that started on this day and ended on 12.7 brought rainfall from 0.5 inch at the coast to up to six inches of precipitation in the mountains.
1.65 inches fell in Coronado, 1.60 in Vista, 1.42 in Fallbrook, 1.32 in Escondido, and 1.15 in San Diego.
Flooding in Tijuana killed four and left hundreds homeless.
Local flooding, mud slides, standing water, and road closures resulted.
Six inches to two feet of snow fell in the mountains.

1987: A cold front crossing the Pacific Coast brought heavy rain on this day and on 12.5.
Mt. Wilson was drenched with 2.17 inches in six hours.
1.02 inches fell at LA between 5 and 7 pm and rain rates of one inch per hour were reported for a time at John Wayne Airport.
0.61 inch fell in 30 minutes in San Diego all on this day.
Thunderstorm winds gusted to 55 mph at Newport Beach.
Gale force winds battered the coast with speeds exceeding 40 mph, causing tree damage and power outages.
Flooding in downtown LA prompted some evacuations.
Flooding, including water into some houses, was reported in Fallbrook.
More flooding was reported all across San Diego County, including downtown San Diego, where numerous motorists were trapped in their vehicles.
A mudslide closed Valley Center Road and Lake Wohlford Road.
In Westminster winds gusted up to 60 mph and damaged 40 mobile homes, nine of which were ripped out of the ground, and left 24 people homeless.
Boats were shaken loose from their moorings.
Lightning struck a radio tower in Newport Beach, knocking the station off the air, and knocked out power to the area.
Winds knocked down power lines in Newport Beach.

1983: Deepening low pressure dropped 2-4 feet of snow in the Sierra, with reports of 17.5" at Lodgepole and 10" at Grant Grove.
Gusts over 60 mph caused blowing snow and near zero visibility.

1979: It was 69° in Big Bear Lake, the highest temperature on record for December.
This also occurred four days later on 12.8.1979.

1974: Heavy rain that began on 12.3 ended on this day.
There was considerable flooding of low lying areas of Orange County.

1966: Heavy rain drenched the region, even the mountains, from 12.2 to 12.7.
Storm totals for the period: 27.79 inches in Lake Arrowhead (believed to be a 100 year rainfall), 23.73 inches in Palomar Mountain, 18.72 inches in Big Bear Lake, 17.85 inches in Idyllwild, 9.14 inches in San Bernardino, 7.63 inches in Redlands, 6.21 inches in Santa Ana, 5.19 inches in Riverside, 2.99 inches in San Diego, 2.73" in Palm Springs, but only 0.66" in Victorville and 0.28" in Barstow!
At least two homes were destroyed by floods and debris flows in Mill Creek Canyon.
Debris flows and floods damaged homes and roads in Wrightwood and Lytle Creek.
Homes and businesses were flooded in Redlands and Palm Springs.
Many roads across the region were flooded and washed out. Scuba divers could not recover a Montclair man believed drowned in floodwaters.
Strong storm winds caused power outages.

1958: It was 82° in Idyllwild and 80° in Palomar Mountain, each the highest temperature on record for December.
This also occurred in Palomar Mountain the previous day on 12.3.1958.

1945: 23.0 inches of snow fell at Tahoe City, with 10.0 inches of snow being reported at Glenbrook, NV.

1873: 2.52 inches of rain fell in San Diego, the ninth greatest daily rainfall amount on record.

Source: NWS Hanford, Reno, & San Diego

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[californiadisasters] On This Date In CA Weather History (December 3)



On This Date In California Weather History....

2006: Offshore winds gusted to 92 mph with seven gusts over 75 mph in northwest San Bernardino.
Gusts reached 75 mph at Fremont Canyon.
Downed power lines sparked a small fire in the Inland Empire.
16 power poles were downed in Valley Center.

2000: Dense fog caused several fatal car accidents in San Diego County.
One man involved in the accidents jumped over a guard rail to escape traffic.
Unaware he was on a bridge, he fell 70 feet to the road below.

1999: Santa Ana winds produced a gust of 90 mph at San Bernardino and 68 mph in Fontana.

1974: Heavy rain that began on this day ended on 12.4.
There was considerable flooding of low lying areas of Orange County.

1966: Start of the flooding event in the Kern County Sierra Nevada, which persisted through the 8th, including flooding at Kernville.

1966: Heavy rain drenched the region, even the mountains, from 12.2 to 12.7.
Storm totals for the period: 27.79 inches in Lake Arrowhead (believed to be a 100 year rainfall), 23.73 inches in Palomar Mountain, 18.72 inches in Big Bear Lake, 17.85 inches in Idyllwild, 9.14 inches in San Bernardino, 7.63 inches in Redlands, 6.21 inches in Santa Ana, 5.19 inches in Riverside, 2.99 inches in San Diego, 2.73" in Palm Springs, but only 0.66" in Victorville and 0.28" in Barstow!
At least two homes were destroyed by floods and debris flows in Mill Creek Canyon.
Debris flows and floods damaged homes and roads in Wrightwood and Lytle Creek.
Homes and businesses were flooded in Redlands and Palm Springs.
Many roads across the region were flooded and washed out.
Scuba divers could not recover a Montclair man believed drowned in floodwaters.
Strong storm winds caused power outages.

1958: It was 95° in Santa Ana, 93° in Riverside and Palm Springs, and 80° in Palomar Mountain, each the highest temperature on record for December.
It also reached 80° in Palomar Mountain the next day, 12.4.1958.
It also reached 93° in Palm Springs on 12.7.1938.

Source: NWS Hanford & San Diego

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[Geology2] Extreme Global Warming in the Ancient Past

Extreme Global Warming in the Ancient Past
ScienceDaily [USA], Nov. 11, 2010

Variations in atmosphere carbon dioxide around 40 million years ago were
tightly coupled to changes in global temperature, according to new
findings published in the journal Science. The study was led by
scientists at Utrecht University, working with colleagues at the NIOZ
Royal Netherlands Institute for Sea Research and the University of
Southampton. "Understanding the relationship between the Earth's climate
and atmospheric carbon dioxide in the geological past can provide
insight into the extent of future global warming expected to result from
carbon dioxide emission caused by the activities of humans," said Dr
Steven Bohaty of the University of Southampton's School of Ocean and
Earth Science (SOES) based at the National Oceanography Centre in
Southampton.

http://www.sciencedaily.com/releases/2010/11/101110101313.htm

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[californiadisasters] 41 dead in Isreali brush fire

7,000 acres have burned and 17,000 people have been evacuated.

http://www.latimes.com/news/nationworld/world/la-fg-israel-fire-20101204,0,5
877623.story

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[Geology2] New method predicts earthquakes with 80 percent accuracy



New method predicts earthquakes with 80 percent accuracy

Posted By: Cameron Scott December 03 2010 at 10:47 AM

A new Spanish study that analyzed local earthquake data since 1978 found patterns in the data that can predict a medium to large earthquakes with 80 percent accuracy.

The key factor was the fault's resistance: less resistance leads to lots of small earthquakes, whereas more resistance leads to scarcer but bigger quakes.

Fascinatingly, another recent study, this one out of Israel's Hebrew University, focused on the similar principle of friction. It found that the laws of physics long thought to determine friction don't really hold true: Rather than two blocks — used to simulate tectonic plates in the laboratory — touching at every point along their adjacent faces, there are actually a discrete set of points at which they touch, and the contact points don't all break at the same time.

When contact breaks in a slow cascade from point to point, the conditions are set for a quake causing minimum damage. But contact points that break all at once correspond to supersonic earthquakes, which cause serious damage.

The Israeli scientists suggest that analyzing the way a particular fault ruptures in one temblor will allow them to better predict what might happen next along the same fault.

Looked at together, the studies suggest that we may be much closer to being able to predict, and therefore prepare for, major quakes.


Source

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