Fire Earth

Earth is fighting to stay alive. Mass dieoffs, triggered by anthropogenic assault and fallout of planetary defense systems offsetting the impact, could begin anytime!

Archive for February 4th, 2009

Images of the Day: California Drought & Folsom Lake

Posted by feww on February 4, 2009

Desertification of California Continues

Folsom Lake’s water level is way down; mandatory conservation efforts are likely soon. Meanwhile, Sacramento has been criticized for its water gluttony: The city’s per capita water use, at 278 gallons per day, is double the state average. Many residents falsely assume water simply flows back into local rivers. Not true, says the data. Photo: AUTUMN CRUZ/ Sacramento Bee. Image may be subject to copyright.

Sacramento received only 1.5 inches of rain in January, compared with the historical average of 4.2 inches, the National Weather Service said.

US Seasonal Drought Outlook – Source NOAA/ NWS Climate Prediction Center

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Posted in Collapsing Cities, Drought, land degradation, Mojavefication, Sacramento | Tagged: , , , , | 3 Comments »

No Doubt about Redoubt Volcano!

Posted by feww on February 4, 2009

Latest photo of Alaska’s Redoubt Volcano

Hot smoke and gas were ejected from two new fumaroles that appeared in the snow and ice layer on Alaska’s Redoubt Volcano.

Photo by Chris Waythomas, Alaska Volcano Observatory /U.S. Geological Survey (USGS)

The AVO researchers reported that the ice layer surrounding the volcano is melting rapidly because of the hot gasses  that are spewing out of the fumaroles. The gases reportedly include carbon dioxide, hydrogen sulfide, and sulfur dioxide, which means magma is edging upward. AVO scientists also believe new magma has entered Redoubt, which means that there is strong possibility the volcano will explode in the near future.

The 3,108-meter volcano, considered the 9th most active in the U.S., is about 170 kilometers from Anchorage, Alaska.

AVO report dated 2009-02-03 15:02:56

“Unrest at Redoubt Volcano continues. Seismic activity remains elevated above background. Clear web camera images show no activity at the volcano. An AVO crew is working near the volcano today. They have installed one new seismic station and are presently working on a second installation.  AVO is monitoring the volcano 24 hours a day.”

AVO Redoubt Scenarios

Based on their knowledge of  Redoubt’s past activities, both historical and from the geologic record, and their analysis of the current episode of unrest, AVO suggests four possible scenarios:

  1. Failed Eruption
    Unrest continues to escalate culminating in an eruption that is similar to or smaller than the one that occurred in 1989-90.
  3. Larger [than 1989-90] Explosive Eruption
  4. Flank Collapse

Based on all available monitoring data and AVOs knowledge of the volcano, scenario number two, an eruption similar to or smaller than that of 1989-90, appears to be the most probable outcome at this time. We consider one and three to be somewhat less likely, and scenario four to be much less likely. —AVO

For more information see Redoubt Interpretation and Hazards.

Geologic Summary: Redoubt is a 3108-m-high glacier-covered stratovolcano with a breached summit crater in Lake Clark National Park about 170 km SW of Anchorage. Next to Mount Spurr, Redoubt has been the most active Holocene volcano in the upper Cook Inlet. Collapse of the summit of Redoubt 10,500-13,000 years ago produced a major debris avalanche that reached Cook Inlet. Holocene activity has included the emplacement of a large debris avalanche and clay-rich lahars that dammed Lake Crescent on the south side and reached Cook Inlet about 3500 years ago. Eruptions during the past few centuries have affected only the Drift River drainage on the north. Historical eruptions have originated from a vent at the north end of the 1.8-km-wide breached summit crater. The 1989-90 eruption of Redoubt had severe economic impact on the Cook Inlet region and affected air traffic far beyond the volcano. [Source: GVP]

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Content: 500 words, 1 image, 8 links

Posted in Explosive Eruption, magma, Mount Spurr, Redoubt Scenarios, Redoubt unrest | Tagged: , , , , | 1 Comment »