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Posts Tagged ‘Ohio River’

Global Disasters/ Significant Events – August 20, 2014

Posted by feww on August 20, 2014

SCENARIOS 888, 817, 699, 505, 444, 111, 101, 100, 070, 023, 09, 08, 07, 05

Thousands of tremors recorded near Bárðarbunga volcano

Seismic activity continues around the Bárðarbunga volcano in the northwestern part of Vatnajökull glacier, with about 5,000 tremors recorded since Saturday. The largest quake so far measured 3.0Mw, officials said.

The seismicity is said to be the most intense ever recorded in the area. Most of the quakes are occurring at depths of 5 – 10km, said the Iceland Met Office.

Fearing a major eruption, authorities have evacuated an area north of the volcano, where severe flooding could occur as a result of the ice cap of the Vatnajökull glacier melting.

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Dozens killed in Hiroshima landslides

An extreme rain event, said to be the equivalent of a month’s worth of rain, unleashed severe flooding and landslides killing at least 40 people in the outskirts of the Hiroshima in western Japan. About a dozen others are reported missing, and the death toll is expected to rise, police said.

A record 217mm of rain fell in just 3 hours in the northern part of the city, more than the average for the entire month of August, the local media reported.

The city’s fire department have reportedly admitted to their own incompetence for the large number of casualties: “Something went wrong in our analysis (of the emergency) … We failed to issue an evacuation advisory ahead of the disaster. Looking back, … this is something we need to amend.”

“In 1999, Hiroshima City and nearby Kure City were hit by similar landslides which killed more than 30 people,” said a report.

Meantime, flooding and mudslides have destroyed or damaged more than 2,100 homes and other buildings in Fukuchiyama City in Kyoto Prefecture, and Tanba City in neighboring Hyogo Prefecture in the Kansai region west of Honshu island.

Major Wildfires Burning across Western U.S.

About two dozen wildfires burning across California, Oregon and Washington state amid rising temperatures and worsening drought. Authorities say this is one of the worst wildfire seasons on record.

Thousands of gallons of oil spills from Duke Energy coal plant into Ohio River

At least 5,000 gallons of fuel oil spilled into Ohio River from a 60-year-old power plant owned by Duke Energy near Cincinnati, said the U.S. Coast Guard.

The Ohio River stretches more than 1,500km from Pennsylvania to Illinois and provides drinking water for at least 3 million people, said the Ohio River Foundation (ORF).

It is also a major artery for shipping agricultural produce by barge from the eastern United States to export terminals on the Gulf Coast.

The Ohio River is now the worst toxic water dump in the U.S., said ORF.

  • Polluters dumped 31 million pounds of toxic chemicals into Ohio River in 2007, making it the most toxic river in the U.S.
  • Violations of the Clean Water Act are going unprosecuted.
  • About half of lakes and reservoirs are contaminated above EPA “safe levels,” said ORF.

“Amazingly, in some cases this is permitted pollution; however, the number of permit violations appears to be growing.”

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BP-NM Before and After Flooding Satellite Images

Posted by feww on May 6, 2011

Flooding at the Confluence of the Mississippi and Ohio Rivers 

Before image below shows the New Madrid Floodway south of Cairo, Illinois and the confluence of the two rivers inundated after Birds Point Levee was intentionally breached on May 2, 2011

Click image to enlarge.
Download largest image (5 MB, JPEG) — acquired May 3, 2011

After image of the area was acquired on April 14, 2010 and is used as reference.

Click image to enlarge.
Download largest image (5 MB, JPEG).   Images were taken by Landsat-5 satellite. Source: NASA-EO.

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Mississippi, Ohio Rivers Still Rising; Cairo Evacuated

Posted by feww on May 1, 2011

Army Corps of Engineers on standby to blow a hole in Birds Point levee in Missouri

A “sand boil,” an area of excessive water seepage pushing through the ground, has become dangerously large, as the Corps closely monitors rising river levels, expected to crest, surpassing the 60 feet mark by Tuesday.

“That’s not just putting pressure here in Cairo, but the entire system is being put under pressure,” Corps commander said. “This is going to be the biggest amount of stress that these levees have been put under since we started the construction in 1928.”

Blowing up the levee would flood at least 130,000 acres of Missouri farmland, causing severe damage. On the other hand, towns in Illinois and Kentucky could be flooded if the levee were not blown up.

Both the Ohio and Mississippi Rivers have been rising following days of rain which have added to the water levels from the considerably-heavier-than-usual ongoing spring flooding. The city of Cairo (population: 2,800) sits at the confluence of two rivers.

Small city of Cairo (at center of this astronaut photo) sits at the confluence of Ohio and Mississippi Rivers. “Flooding of the Ohio and Mississippi Rivers presents a continual danger to the city; this danger is lessened by the Birds Point-New Madrid Floodway that begins directly to the south of the river confluence. During major flood events, the floodway lessens flood stages upstream (such as at Cairo) and adjacent to the floodway. Part of the extensive levee system associated with flood control of the Mississippi River is visible in the image. Barlow Bottoms (image right), located in adjacent Kentucky, is a wetland bird-watching location that is replenished by periodic floods and releases of Ohio River water.” Astronaut photograph ISS012-E-15035 was acquired January 12, 2006. Source: NASA-EO.  Download large image (583 KB, JPEG) 

Current Warnings/ Watches

Flooding along Ohio and Mississippi Rivers

Flood conditions along Wabash, Ohio, Black, and Mississippi Rivers are much worse in April 2011 than a year earlier. MODIS on NASA’s Terra satellite took these false-color images on April 28, 2011 (top), and April 29, 2010 (bottom). Source: NASA-EO

U-S Flood Map

As of posting, 51 river gauges are reporting major flooding, 80 gauges moderate flooding, 125 gauges minor flooding, and 202 are at near flood stage, as shown in the AHPS map above. Floods are wreaking havoc in the U.S. Midwest, South and the Northeast.

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