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!

Posts Tagged ‘Río Blanco’

Chaitén on a Clear Day

Posted by feww on March 10, 2010

Chaitén Volcano Natural Color Satellite Image

Chaitén: Natural-color image of  the volcano taken at about 10:30 am local time on March 3, 2010 by ALI on EO-1 satellite. Credit NASA.

An Earlier Image of  Chaitén

Chaitén: Natural-color satellite image, acquired by MODIS on Aqua satellite, February 25, 2010. Credit NASA.

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Posted in Chaitén caldera, Chaitén eruption, Chaitén satellite image, Chaitén Volcano image, volcano | Tagged: , , , , , , | Leave a Comment »

Earthquake, Heavy Rain, Mudslides Strike Peru

Posted by feww on January 26, 2010

Peru Under Siege from Earthquake, Heavy Rain and Mudslides, 3 Killed

Strong quake measuring up to magnitude 6.1 struck inside the Peruvian Amazon rain forest 20 km (10 miles) SSE of Pucallpa, Peru at a depth of about 153 km, on Monday, January 25, 2010 at 22:53 UTC.

As of posting, there were no reports of damage or casualties, however, The tremors were felt in Trujillo, Chimbote, Cerro de Pasco, Huánuco, Lima (capital), Pucallpa, San Ramón. The quake was felt also in Cruzeiro do Sul, Brazil,  a report said.

Heavy Rain and Mudslides

The overflowing Vilcanota and Rio Blanco rivers in the Andean province of Cusco, southeastern Peru, have flooded hundreds of hectares (acres) of corn crop, AFP reported.

Heavy rains have buffeted the region in the past three days, flooding rivers and causing mudslides that killed at least two people and damaged stone walls at Inca sites, associated Press reported.

Meanwhile, heavy rain and mudslides blocked the train route to the ancient Inca citadel of Machu Picchu, stranding about 2,000 tourists, the tourism ministry said.

“Rail is the only means of transportation on the last leg of the trip to Machu Picchu from the ancient Inca capital of Cusco.”AP said.

Elsewhere in the region, the overflowing Yanama river has pinned down trucks and long-distance passenger coaches at the Cusco-Abancay highway. The flooding has damaged or destroyed about  50 homes and also destroyed crops, officials said.

A magnitude 7.9 quake and resulting landslides in Northern Peru killed an estimated 70,000 people and injured up to 150,000 others, leaving half a million homeless.

Earthquake Location map.
Source: USGS/EHP. Enhanced by FEWW.

Peru Earthquake Details:

  • Magnitude reported by USGS: 5.8  [EQ magnitude estimated by FEWW: 6.1 Mw]
  • Date-Time:
    • Monday, January 25, 2010 at 22:52:47 UTC
    • Monday, January 25, 2010 at 05:52:47 PM at epicenter
  • Location: 8.546°S, 74.467°W
  • Depth: 153.4 km (95.3 miles)
  • Region: CENTRAL PERU
  • Distances:
    • 20 km (10 miles) SSE of Pucallpa, Peru
    • 230 km (140 miles) WSW of Cruzeiro do Sul, Acre, Brazil
    • 240 km (150 miles) NE of Huanuco, Peru
    • 485 km (300 miles) NE of LIMA, Peru
  • Location Uncertainty: horizontal +/- 7.2 km (4.5 miles); depth +/- 4.3 km (2.7 miles)
  • Source: USGS NEIC (WDCS-D)
  • Event ID: us2010rxcf

Seismic Hazard Map

Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green.  Source: USGS/EHP.

Historic Seismicity [Mag 7 or greater since 1900]

Major Tectonic Boundaries: Subduction Zones -purple, Ridges -red and Transform Faults -green.  Source: USGS/EHP.

Political Map of Peru.

Earthquake Location

Earthquake Location Map.
Source: USGS/EHP. Click image to enlarge.

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Posted in Cruzeiro do Sul, earthquake, earthquake 2010, Machu Picchu, Yanama river | Tagged: , , , , , , , , , | 7 Comments »

Buried in Lahar

Posted by feww on February 28, 2009

Lahar Burying Chaitén Town, Chile

A view shows a destroyed house at the flooded Chaiten town located some 1,220 km (758 miles) south of Santiago February 26, 2009. REUTERS/Victor Ruiz Caballero. Image may be subject to copyright.

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Posted in chile, cone collapse, santiago, volcanism, volcanoes | Tagged: , , , , | Leave a Comment »

Chaitén: Volcano with a Mission?

Posted by feww on January 22, 2009

Dormant for 9,500 years, Chaitén recalled to service by nature

Continuing Activity at Chaitén Volcano

Chaitén Volcano, southern Chile, 42.833°S, 72.646°W; summit elev. 1122 m. False-color images: Red indicates vegetation; deep blue water and off-white is the plume from the volcano. Image: Earth Observatory. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite captured the above image of Chaitén Volcano on January 19, 2009. the two versions of the image posted here are (uppermost) a close-up view, and (top) a view with the surrounding area.

1. After about 9,500 years of dormancy, as if recalled to service by nature, Chile’s Chaitén Volcano erupted violently on May 2, 2008.  The volcano has since continued intermittent activity,  spewing plumes of ash and steam into the atmosphere and ejecting pumice across Patagonia.

2. Lahars from the volcano inundated a coastal town of the same name (population 4,300), whose inhabitants were evacuated last year.

3. Chile’s  SERNAGEOMIN reported an increase in Chaitén’s seismic activity  during 9-12 January, global Volcanism said. “The unstable slopes of Domo Nuevo 2 and spine collapses continued to produce block-and-ash flows. Based on SIGMET notices, analysis of satellite imagery, and web camera views, the Buenos Aires VAAC reported that on 15, 17, 19, and 20 January ash plumes rose to altitudes 1.5-2.1 km (5,000-7,000 ft) a.s.l. and drifted NE, E, and SE. A small thermal anomaly was detected in satellite imagery on 19 January.”

4. “When the Philippine’s Mount Pinatubo erupted in June 1991, it was a tremendous, explosive eruption that buried the surrounding countryside in a thick layer of ash and mud and pumped a cloud of ash and gas high into the atmosphere. Sulfur dioxide rose high into the stratosphere 34 kilometers above Earth’s surface and circled the globe. The gas combined with water to form a fog-like screen of sulfate aerosols that shielded Earth’s surface like a giant shade, and for more than a year the global average temperature dropped by 0.5 degrees Celsius.” EO said.

5. When Chaiten erupted on May 2, 2008, some experts beileved that it was unlikely that it would have an effect on global temperatures.

6. Firstly, Chaiten did not released a large amount of sulfate aerosols into the atmosphere.

7. Secondly, its location was unfavorable. Because it was located in southern Chile far from the equator, its impact would be limited. “Most of the volcanoes that have influenced global temperatures are located in the center of the globe near the equator. Winds in the stratosphere in the tropics quickly circulate sulfate aerosols around the globe. By contrast, stratospheric winds near the poles tend to push sulfate aerosols towards the poles and towards the surface, limiting the area influenced by the aerosols.” EO said.

8. Chaiten was therefore deemed as unlikely to influence global temperatures even if the sulfur dioxide coming from the volcano were higher.

9. However, as Chaiten continues to remain active, it would only be a matter of time before its full impact on the climate is known.

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This post includes 9 paragraphs, 2 images, 1 caption, 7 links and 532 words.

Posted in active volcano, chile, dormant volcano, floods | Tagged: , , , | Leave a Comment »