Earth ChangesS


Bizarro Earth

Super-volcanoes can form and erupt in hundreds of years, not thousands says new findings

Image
© SPLEnormous eruptions such as that at Yellowstone result in "calderas", which can become huge lakes
The largest volcanoes on our planet may take as little as a few hundred years to form and erupt.

These "supervolcanoes" were thought to exist for as much as 200,000 years before releasing their vast underground pools of molten rock.

Researchers reporting in Plos One have sampled the rock at the supervolcano site of Long Valley in California.

Their findings suggest that the magma pool beneath it erupted within as little as hundreds of years of forming.

That eruption is estimated to have happened about 760,000 years ago, and would have covered half of North America in its ash.

Bizarro Earth

500 evacuated from vicinity of Colombia's Nevado del Ruiz volcano

Image
© UnknownNevado del Ruiz
A light spewing of ash amid renewed rumblings in the Nevado del Ruiz volcano prompted Colombian authorities to evacuate 500 people from beneath its flanks and briefly suspend flights at four airports. The volcano's seismic activity was more intense than episodes in April and early May, when it emitted columns of steam, said the government geological agency Ingeominas. The 17,160ft volcano spouted ash that fell on population centers including the western city of Manizales.

Bizarro Earth

Growing unrest: preventive alert declared for three Costa Rican volcanoes

Image
© National Seismological NetworkRincon de la Vieja volcano is showing activity at significant levels experts from the RSN said.
The National Emergency Commission (CNE) on Wednesday declared a preventive "green alert" due to recent seismic activity at three volcanoes: Rincón de la Vieja, in the northwestern province of Guanacaste, Poás, northwest of San José in the province of Alajuela, and Turrialba, in the eastern province of Cartago.

"The CNE's alert is supported by reports from technical and scientific agencies that note the volcanoes are in constant activity," the commission stated.

Turrialba Volcano, 70 kilometers east of the capital, has seen significant volcanic and seismic activity in recent months, prompting the National Seismological Network to upgraded its own color threat level to yellow.

Emissions of gas at Poás Volcano are expected to increase, and Rincón de la Vieja Volcano has also seen significant volcanic activity, the CNE noted.

Cloud Lightning

Montreal Floods: Heavy Rain Causes Power Failures, Shut Down Parts Of Metro

A wall of rain collapsed onto Montreal in one torrential instant that flooded city streets, closed subway stations, caused power failures, damaged private property and forced evacuations from public buildings Tuesday.

It took only a few minutes to transform downtown streets into miniature canals. The foul odour of overflowing sewage floated over the area near the port.


Igloo

Whatever Happened to that Warning About Summer Arctic Sea Ice Disappearing by 2012?

Melting Ice
© John McConnico/AP Icebergs float in a bay off Ammassalik Island, Greenland, on July 19, 2007.

New satellite images from NASA reveal that Arctic Ocean ice is melting much faster than anyone had predicted. One scientist fears that 2012 may mark the end of summer ice in the Arctic Sea.
"Arctic Sea Ice Gone in Summer Within Five Years?" shouted the National Geographic headline just five years ago.

"An already relentless melting of the Arctic greatly accelerated this summer - a sign that some scientists worry could mean global warming has passed an ominous tipping point," wrote Seth Borenstein on December 12, 2007.

"One scientist even speculated that summer sea ice could be gone in five years," warned Borenstein."At this rate," said NASA climate scientist Jay Zwally, "the Arctic Ocean could be nearly ice-free at the end of summer by 2012, much faster than previous predictions."

"The Arctic is often cited as the canary in the coal mine for climate warming," said Zwally. "Now as a sign of climate warming, the canary has died. It is time to start getting out of the coal mines."

It will be interesting so see how Mr Borenstein spins the latest news out of the Arctic, that "the heaviest polar ice in more than a decade could postpone the start of offshore oil drilling in the Arctic Ocean until the beginning of August."

"The heaviest polar ice in more than a decade." So much for Mr Zwally's ice-free Arctic summer. I hope his canary didn't freeze to death.

Arrow Down

Anoka County, Minneapolis sinkhole is growing


  • A homeowner living near a massive sinkhole that closed an Anoka County road says the huge hole is getting even bigger.

    The hole appeared on Saturday morning, taking out 15 feet of Kettle River Boulevard and 165th Avenue in Columbus, Minn. -- but it's still growing around the edges.

    The roadway has been blocked to traffic, and the Anoka County engineer says crews will be out on Thursday morning to begin repairs.

    Officials say heavy rains and an aging infrastructure caused the pipe beneath the road to give out.

    Image

    Sun

    North Korean Farmers Cite Grave Drought; Aid Unlikely

    Image
    © The Associated PressIn this May 25, 2012 photo, a North Korean farmer sifts soil through his fingers in a dry corn field at a the Tokhae cooperative farm on the outskirts of Nampho, North Korea.
    Nampho, North Korea - North Korea is mobilizing workers to irrigate farms and repair wells as officials report a serious drought that could worsen already critical food shortages.

    Help, however, is unlikely to come from the United States and South Korea following Pyongyang's widely criticized rocket launch.

    North Korea has had little rain since April 27, with the country's western coastal areas particularly hard hit, according to a government weather agency in Pyongyang. The dry spell threatened to damage crops, officials said, as the country enters a critical planting season and as food supplies from the last harvest dwindle.

    In at least one area of South Phyongan Province where journalists from The Associated Press were allowed to visit, the sun-baked fields appeared parched and cracked, and farmers complained of extreme drought conditions. Deeply tanned men, and women in sun bonnets, worked over cabbages and corn seedlings. Farmers cupped individual seedlings as they poured water from blue buckets onto the parched red soil.

    "I've been working at the farm for more than 30 years, but I have never experienced this kind of severe drought," An Song Min, a farmer at the Tokhae Cooperative Farm in the Nampho area, told the AP.

    Radar

    Update: Italy Hit by 2nd Deadly Quake in Days; Death Toll at 16

    Image
    © Luca Bruno / The Associated PressRescue teams and search dogs look for three workers reported missing at a factory in Medolla, Italy, devastated by the area's second quake in nine days.
    San Felice Sul Panaro, Italy - Workers at the small machinery company had just returned for their first shift following Italy's powerful and deadly quake earlier this month when another one struck Tuesday morning, collapsing the roof.

    At least three employees at the factory - two immigrants and an Italian engineer checking the building's stability - were among those killed in the second deadly quake in nine days to strike a region of Italy that hadn't considered itself particularly quake prone.

    By late Tuesday, the death toll stood at 16, with one person missing: a worker at the machinery factory in the small town of San Felice Sul Panaro. An estimated 350 people also were injured in the 5.8 magnitude quake north of Bologna in Emilia Romagna, one of Italy's more productive regions, agriculturally and industrially.

    Factories, barns and churches fell, dealing a second blow to a region where thousands remained homeless from the May 20 temblor, much stronger in intensity, at 6.0 magnitude.

    Comment: One has to wonder if the oil and gas drilling in this exact area of Italy, the gas drilling having begun late last year, has anything to do with these earthquakes...

    Why Italy's Earthquake Was Weird

    Then there were the recent strong earthquakes in Bulgaria and Norway. Things be rockin' and rollin'!

    5.6 earthquake which jolted Bulgaria was strongest since 1858, and the aftershocks continue

    USGS: Earthquake Magnitude 6.2 - Norwegian Sea


    Cloud Lightning

    Hailstorm rips through Cuttack, India, Capital hit too

    Cuttack
    © Google maps
    A hailstorm hit the Millennium City on Monday afternoon bringing relief from the sweltering weather. But it caused widespread damage uprooting trees and utility poles and snapping power connections in many parts.

    Wind gusts accompanied by hail and rain ripped through the City at around 5 pm. The cloudburst wreaked havoc. Many vehicles were also crushed under trees which came down under the impact of the storm.

    Bizarro Earth

    Second earthquake in ten days shakes northern Italy, leaving ten dead


    A new earthquake has struck the Emilia region in northern Italy, killing at least 10 people and burying several others under rubble, local media say.

    All the deaths were in the Modena area.

    Three were killed when an industrial shed collapsed in Medolla, three died in San Felice, two in Mirandola and one in Cavezzo.

    Tuesday's tremor, estimated at 5.8 magnitude, hit the same region where a quake 10 days ago killed seven people and destroyed many buildings.

    Milan and Bologna were shaken too.

    Some people fled from buildings when they felt the tremor, which struck at 09:03 local time (07:03 GMT).

    Comment: One has to wonder if the oil and gas drilling in this exact area of Italy, the gas drilling having begun late last year, has anything to do with these earthquakes...

    Why Italy's Earthquake Was Weird

    Then there were the recent strong earthquakes in Bulgaria and Norway. Things be rockin' and rollin'!

    5.6 earthquake which jolted Bulgaria was strongest since 1858, and the aftershocks continue

    USGS: Earthquake Magnitude 6.2 - Norwegian Sea