Posts Tagged ‘volcano’

Volcano Watch in the Canary Islands

Friday, September 30th, 2011 by

El Hierro, the smallest of the heavily visited Canary Islands, is evacuating a targeted group of residents and tourists this week. This comes in response to the spike in intensity of the tremors that the Spanish National Geographic Institute began reporting in July and the fear that these events could lead to a volcanic eruption. El Hierro’s last reported eruption lasted a month back in 1793.

This voluntary evacuation could actually lead to an influx of visitors by those practicing volcano tourism as they may choose to go to the island to witness and document the event. In some cases this practice can be safe, as explained by Eumenio Ancochea, volcanologist at Madrid’s Complutense University, “After an eruption the lava advances at a few metres per hour and you can easily take photographs as it descends.”   In the El Hierro case, it may not be safe to visit, as potential landslides resulting from an eruption could be devastating.  It is this threat of landslides that has motivated the evacuation.

El Hierro is just the latest of many volcanoes gaining celebrity in the news, but this is not necessarily an indication that volcanic activity is increasing worldwide.  As we surmised in July, experts suggest that the impression of increased volcanic activity should be attributed to increased reporting and better communication all around the world.

Photo by Mataparda.

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Mount Lokon Blows Top in Indonesia: Is Activity Increasing Worldwide?

Monday, July 18th, 2011 by

Reports from Sulawesi in Indonesia indicate that once again thousands are fleeing smoke, ash and lava from a spectacular eruption. Whether Indonesia, Chile, Iceland or Eritrea—volcanic activity is grabbing headlines and has made us wonder if world travelers are increasingly likely to encounter active volcanoes. We asked Robert Peckyno, webmaster for Volcano World at Oregon State University, what scientists think. He shared with us a Smithsonian analysis that convincingly concludes that the number of confirmed erupting volcanoes has leveled off between 50 and 70 per year over the past four decades. Researchers say that the impression of increased activity should be attributed to increased reporting and better communication all around the world.

Not content with this finding, some volcanologists and climatologists have started to study whether global climate change might accelerate volcanic activity. A recently published paper says “observations suggest that the ongoing rise in global average temperatures may already be eliciting a hazardous response from the geosphere.” Perhaps travel in the decades ahead will feature trips to enjoy volcanic fireworks and require aircraft to routinely skirt clouds of volcanic ash.

Photo by zadoc.

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Volcanic Ash Cloud Continues to Imperil Travelers in South America, Australia and New Zealand

Monday, June 13th, 2011 by

Ten days of intermittent erupting by Chile’s Puyehue volcano has created an ash cloud stretching 6,000 miles through the atmosphere to Australia and New Zealand. The latest news reports carry accounts of cancelled flights throughout the southern hemisphere. On the ground, volcanic ash closed roads in southern Patagonia (Argentina).  Air traffic is reportedly often able to skirt the ash particles by flying at lower altitudes, but airports in Buenos Aires, Argentina and Montevideo, Uruguay halted flights today.

Photo by sacabezas.

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Travel Bulletin Indonesia: Merapi Erupts

Wednesday, October 27th, 2010 by

Mount Merapi erupted just before dusk on Tuesday, shaking the region and spawning more than 600 earthquakes.  According to a New York Times report, the eruption killed at least 29 people, and many others are being treated for respiratory issues and severe burns.  Tens of thousands of people have been driven from their homes, many of which no longer stand.  The area is covered in a white volcanic ash.  Officials are currently unsure if Merapi has ceased erupting or if larger explosions are imminent.  Meanwhile, police and volunteers are monitoring checkpoints surrounding the area to prevent locals from returning to their homes.

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Travel Bulletin Indonesia: Pressure Building at Mount Merapi

Tuesday, October 26th, 2010 by

The most volatile volcano in Indonesia has been experiencing increased activity in the past 24 hours.  On Monday, the Indonesian government raised the alert for Mount Merapi to the highest level and reported that the magma has risen to about 1km below the surface. About 500 volcanic earthquakes were recorded on the mountain over the weekend.  Officials have reported that there is pressure building behind a massive lava dome near the tip of the crater, and if the pressure is not released slowly, the area could experience a huge eruption.  You can learn more and keep abreast of the scientific monitoring by checking the Wikipedia article. The volcano is located on the border between Central Java and Yogyakarta, and residents within a six mile radius have been urged to evacuate.

Mount Merapi, which translates to Mountain of Fire, has erupted regularly since 1548.  Generally there have been smaller eruptions every two or three years, with larger ones occurring every 10 to 15 years.  Mount Merapi is one of the 16 Decade Volcanoes, which are chosen by the International Association of Volcanology and Chemistry of the Earth’s Interior (IAVCEI) for particular study because of their history of large, destructive eruptions and proximity to populated areas.

According to Altegrity International more than 300 people were evacuated from villages near the volcano.  But as the world was reminded by the recent volcanic eruption in Iceland, volcanic ash can cause medical problems and disrupt travel plans hundreds of miles away from the site of the activity.

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