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of Arenal with all its crops, livestock, the eruption
also took the lives of 87 people. It has been active
ever since and erupts on average every 48 minutes.
Eruptions are classed as not dangerous as they are
moderate and very highly controlled. It has become
a very popular tourist destination and at night,
the spectacular sight of the lava can be seen spewing
from the top of the volcano
Barva
At 9,500 feet above sea level, it is the highest
point of the Brauilo National Park and has been
dormant for over 300 years now. The volcano is enormous
with coffee plantations and small towns down its
slopes. Towards the summit, the bio diversity of
the cloud forest is not the norm of a normal volcano!
Irazú
Situated close to the city of Cartago, Irazú
has erupted at least 23 times since its first well-recorded
eruption in 1723. It’s most famous recent
eruption happened on the day John F. Kennedy began
a state visit to Costa Rica in 1963 and it continued
for 2 years covering the central highlands with
ash. The volcano has been dormant since however
earthquake reports show that there is magma still
moving under the volcano. It is the highest volcano
in Costa Rica and said that on a clear day, it is
possible to see both the Atlantic and Pacific Ocean
on either side.
Miravalles
Located in the Guanacaste province Miravalles represents
activity of an enormous eruption with lethal pyroclastic
flows that occurred between 1.5 and 0.6 million
years ago. Since then, the only activity has been
a small steam explosion in 1946. There is still
a high heat flow and it is the location of the biggest
geothermal field in Costa Rica.
Poas
It has erupted continuously since 1828 and is in
a state of constant mild activity. Most of the eruptions
are caused by lava interacting with the water and
rarely do eruptions happen above the summits lake.
The lake in the crater has a pH of less than 1 and
temperatures of up to 85 degrees. It is the only
place in the world that can form a liquid sulphur
lake on the earth’s surface.
Rincon de la Vieja
The volcano is in the Guanacaste province about
25km from Liberia. The name means “The Old
Woman’s Corner” after a myth that a
young girl’s lover got thrown into the volcano
by her father so she lived her life on the volcano
slopes and was credited with powers of healing.
The first recorded eruption was in 1765 but pyroclastic
flow remains show that eruptions date back to 3500
years ago. The most recent eruption was in 1998
and there have been many since with most eruptions
happening in the crater with just smoke and ash
billowing into the air.
Turrialba
Names after the area it is located on the Atlantic
slop town, Turrialba is one of the few volcanoes
in Costa Rica where the visitor can descend into
one of the craters. The last major eruption was
in 1856 and in 2001 there were reports of increased
activity. Standing adjacent to Irazú volcano,
they are both among some of the largest peaks in
Costa Rica.
This
article was brought to you by Caroline Wilson, a
web consultant for
Costa Rica News.
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