Eruption in Fernandina Island, Galapagos Cruises & Tours News

Filed Under (Cuba) by admin on 13-05-2008

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Eric Castro asked:


GENERAL BACKGROUND

Fernandina Island is the westernmost island of the Galapagos Archipelago. It is one of the youngest and most active volcanos of our planet.

There are no human settlements on the island.

Fernandina Island holds only one visitor site: Punta Espinoza (located on the northeast corner of the island)

This shield volcano raises 1,476 meters above sea level (4,842 feet)

Previous eruption took place between January and April 1995.

Island volcanos behave very differently than continental volcanos

The overall amount of gas is low (in comparison to continental volcanos). Thus, eruptions lack high explosivity (like Reventador, Mount Saint Helen’s, Etna, etc).

In island volcanos, lava does not come out from a single vent. Eruptions on island volcanos are mostly through fissure eruptions. These fissures can be radial or circumferential.

The crrent eruption started on Friday, May 13th, 2005. A circumferential fissure located on the southern flank of the volcano is the source of molten rock. Height of the fissure lies at about 1,100 meters above sea level (4,000 feet).

Current fissure has a length of 6 Km (4 miles). The eruption looks like a linear water fountain that bursts out the molten rock upwards. Maximmum height of the fountaining lava has reached 8-10 meters (25-30 feet).

The current fissure is located on the outer flanks of the volcano (as opposed towards the caldera floor). This is why the lava, once flowing, slopes down the volcano.

When fissures are small (short), eruptions are prolonged because lava has a small area of escape. This is why 1995’s eruption lasted almost 4 months. Then, once the small fissure opened, a spatter cone was formed and it held the molten rock as the eruption continued (pretty much like a very active melting pot of the most orange/red gravy you’ll ever see). A month later, the walls of the cone broke, and the lava started flowing to the coastline. It took one week for the lava to reach the ocean.

When fissures are long (like that of the current eruption) the eruption tends to be short, since all the molten rock has a long area to escape. The flows did run for about 7 Km (4.5 miles) but not enough material to reach the shoreline. The flows stopped about 5 Km (3 miles) from the coast.

The crust of these lava flows cools off rather slowly, and it creates an isolating layer. Underneath, lava continues liquid for at least one more month until it totally cools off.

If you want to know more about past eruptions on Fernandina, click: http://www.volcano.si.edu/world/volcano.cfm?vnum=1503-01=&VErupt=Y&VSources=Y&VRep=Y&VWeekly=N&volpage=var#bgvn_2001

QUESTIONS AND ANSWERS:

Is an eruption dangerous? By all means. All eruptions are dangerous. Nevertheless, there are eruptions less dangerous than others, like those of island volcanos. These are not too explosive.

What happens with plant and animal wildlife of the island? Nothing survives the force of a lava flow. The main reason is the high temperature (t can be as hot as 2,000°C). Eruptions are normal processes in island biology. They are inevitable and hard to predict when they wll occur.

Is it good to have eruptions? Certainly. Eruptions should be looked like a “cleaning evolutionary mechanism”. Although, nothing survives, this new land allows natural replacement of species (i.e.: climax versus pioneers). It is at this level where natural selection acts on those who survive and those who arrive.

Are ship’s itineraries modified? Very likely. The Galapagos National Park allows ships to modify their itineraries in order to witness the uniqueness of a Galapagos eruption. Best viewing hours are in total darkness. The best, perhaps, is to get up at 04h30, watch the eruption colors, the lava flowing, and little by little the arrival of the new day at sunrise. The powerful and colossal volcano will finally reveal its face.

Why are there so many clouds when the lava reaches the water? The abrupt temperature change cools off lava almost immediately, but the high temperature of the lava evaporates sea water at super sonic speeds. These clouds are 90% water vapor, and 10% volcanic gas.

How long will the eruption last? Hard to say. What the M/V Santa Cruz and Yacht Isabela II Galapagos Cruises witnessed over the weekend is a sign that eruptions are the hardest things to forecast. For example, the M/V Santa Cruz Galapagos Cruise saw the flows at 04h00 on Saturday May 14th, the Yacht Isabela II Galapagos Cruise saw very little activity on Sunday evening, May 15th. The main fissure has ceased all volcanic activity. As the lava continues to slowly move under the already formed crust, some may break out and it would seem that eruption continues. This can probably be seen for the next two weeks. Due to the massiveness of Fernandina, and the location of where the ship may be, these localized bursts will be invisible to the naked eye.

Where can I see a radial or circumferential fissure? If you visited Genovesa Island (Tower), the walk at Prince Philip Steps has a distinct area where we normally stop the groups to look for the short-eared owl. We normally sit in minute hills in front of a large crack that runs forever. The crack is only 2-3 meters wide (7-10 feet). This crack is a radial fissure. Several examples of circumferential fissures can be found along Darwin Bay, Genovesa Island.

When will the next eruption be? We wish we knew. It is impossible to determine exactly when it will happen. Island volcanos give very little warnings. Plus, these are very fast events. The Galapagos volcanos, however, have eruptions every 6 years.

If there is no eruption, is the volcano dead? Never. Geologists say…”there is no such thing as an extinct volcano”. And they are right. There are volcanos that have been “dormant” for hundreds of years, and suddenly produce a catastrophic explosion (for example, Montserrat in the Caribbean). What is true is that volcanos that are found in an active area, and have not erupted in historic times, carry the biggest threats and worst consequences. Any volcano can become reactivated. Galápagos examples of activity (without permanent eruptions) include, Sierra Negra, Alcedo, Cerro Azul, Roca Redonda, and in the continent we include, Pichincha, Cotopaxi, Antisana, Cotacachi, Sangay, Sumaco, among others.

ALL INFORMATION COMPILED BY FRANCISCO DOUSDEBES, GALAPAGOS EXPEDITION MANAGER

For more information about Galapagos Cruises & Tours visit:

Galapagos Islands Cruises

Galapagos Cruises



Who else besides me thinks that Jason Castro guy on American Idol needs to shave those nasty nappy dreadlocks?

Filed Under (Cuba) by admin on 09-05-2008

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Sportsguy_1973 asked:


He’s a good looking kid, who can sing well, why mess yourself up with that mop. Whenever I watch him sing, I just want to pull out the clippers and give him a buzz cut. Also, that Leif Garrett look-alike kid with the mop on his head, and high voice, cut that damn thing. You agree?

Do Venezuela and Mexico have good relations and will Raul Castro establish a democracy in Cuba?

Filed Under (Cuba) by admin on 07-05-2008

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Rage Against the Machine asked:


Adyari so what kinda government do you propose for Latin America to have?

how much oil is located off the coast of cuba and does it belong to castro and his people?

Filed Under (Cuba) by admin on 06-05-2008

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rudens asked:


and how many miles of coast out to sea does castro and the cuba people own around cuba’s island and can or have they drilled for oil on their land and sea areas., ….and have they drilled there lately?…is this one of their natural resources?

who has used castro oil to induce labor?

Filed Under (Cuba) by admin on 25-04-2008

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melanie l asked:


I just wanted to know if it really worked. My mom is coming to town when I am due and I really am not progressing at all and I don’t want my mom to miss her granddaughter b/c she lives so far away it will be a year before she gets the chance again. Has anyone used it? Did it work or not? Can someone tell me something good to bring on labor?

Where can I have a large party in the SF Castro without paying a lot of money?

Filed Under (Cuba) by admin on 06-04-2008

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pl_retep asked:


I’m looking for a venue in the SF Castro where I can host a large event for around 50-100 people. It can be at a bar, restaurant, or anything–that doesn’t matter. I just can’t be saddled with a large bill upfront.

Any ideas?

September: the Peak Month of the Galápagos Dry Season, Galapagos Cruises & Tours News

Filed Under (Cuba) by admin on 26-03-2008

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Eric Castro asked:


What is it that makes Galapagos islands so amazing during September?? Being this month the peak of the Dry Season, a lot of unusual features are seen within the islands’ environment.? For example, who would expect a barren and desert-like habitat in the middle of the tropics, or who would expect animals not found in other tropical places thriving so well amidst volcanic islands?? For those that take the plunge and see the underwater wonders of the Galapagos islands Marine Reserve (largest one in America), you will be surrounded by tropical and subtropical species of fish, sea lions and penguins…where else on Earth can you encounter this?? While on land, September offers our guests unique events such as the pupping season for sea lions, blue-footed boobies with chicks in their nests, albatrosses with juveniles, migrant birds from northern latitudes, and due to the presence of cool waters the highest chances of encountering cetaceans (dolphins and whales).?

The dry weather makes walking on the islands quite pleasant, as temperatures reach levels no higher than 24?C-26?C (75?F-79?F).? Water temperature averages at 20?C (68?F) and if you want to feel more comfortable in the water (and of course, stay longer) we recommend that you bring with you a shortie wet suit.? Days tend to start cloudy, but the thin layer of clouds usually disipates by mid morning as the heat of the sun burns off such low moisture clouds.? Wind is common through this month, and seas are moderately strong (windbreaker, long sleeve shirts or sweatshirts will make you feel comfortable).? September is a wonderful month to be in Galapagos islands.? Nature enthusiasts, wildlife connoiseurs, photographers, families, and all will experience the most amazing tropical desert, no matter how bizarre this oxymoron sounds. Historically, September is also the time we conmmeorate Charles Darwin’s visit aboard the H.M.S Beagle, which dates back to 1835.? In September the travelers will surely leave Galapagos islands satisfied.

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Overall natural events:

Peak of the dry (gar?a) season

The air temperature reaches its lowest levels at night (19?C-66?F)

Galapagos islands Penguins show remarkable activity on Bartolom?. Swimmers and snorkelers will be delighted with penguins active at the surface or torpedo-like while underwater.

? Sea lions are very active. Females have reached estrus stage, and so harem-gathering males are constantly barking and fighting. Shore fighting is heavy. Western and central islands are the most active ones in terms of sea lions’ activities.

? Most species of sea birds remain quite active at their nesting sites.? Common encounters with dolphins and whales.

For more information about Ecuador tours & Galapagos cruises visit:

Galapagos Islands Cruises

Galapagos Cruises



How can you get your hair into dred locks like Jason Castro ?

Filed Under (Cuba) by admin on 09-03-2008

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Reality asked:


The young guy from “American Idol” program.
How does a caucasian person do this ? Do you have to have very curly hair to get them started ?
I don’t want to do it but just am curious how do they do that ?

Why do people assume that when Fidel Castro dies Cuba will turn into a capitalist paradise?

Filed Under (Cuba) by admin on 06-03-2008

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Rev Run asked:


We might see reforms as the country gradually goes from authoritarian state capitalism to a social democracy or democratic socialism , but I don’t think they will turn laissez faire. The people of Cuba still believe in the socialist revolution even though Castro betrayed them by becoming a dictator.

Now that Castro has stepped down and Cuba may become free over time, does it have great potential ?

Filed Under (Cuba) by admin on 02-03-2008

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castro
Sailon asked:


There are alot of hard working Cuban (refugees) people that live in the United States. They have family & friends in Cuba.
If alot of them decide to return to their homeland, this should have a very good effect on them helping out with systems and services being implemented within short order.