Volcanoes are not only an exciting and dangerous sight. It is thanks to volcanic activities that life was born on the planet Earth. The atmosphere and hydrosphere appeared due to emissions of a huge amount of carbon dioxide and water vapor. To date, some fireworms are inactive, while others cause trouble and anxiety to humanity.
Vesuviy volcano. Italy
It is considered one of the most dangerous volcanoes of Europe. It was he who destroyed several ancient Roman cities in August 1979, including Pompeii. It wakes up with a frequency of about 20 years. Last time - in 1944. 
Volcano Yellowstone Caldera. USA
About a third of the territory of the Yellowstone National Park occupies an active volcano. Inside its magma bubble constantly heels the thermal sources, which is manifested in the formation of geysers and mud boilers. 
Volcano Krakatau. Indonesia
The last time was erupted in 1883, as a result of which the island was destroyed, on which the volcano is located. The process lasted from May until the end of August. 36 thousand people and 259 settlements became victims of ashes and tsunami. Today, 1.5 km around the island is closed for visiting.
Mauna Loa volcano. Hawaii
This is the second size of megavulkanov, the vertex of which from January to March is covered with snow. Sometimes he wakes up and pours lava flows.
Kilimanjaro volcano. Tanzania, Africa
The volcano consists of 3 extinct vertices. However, scientists have discovered that everything at a depth of 400 m under the craters of the mountain is a hot lava. In addition, the centuries-old ice cap, which covered the peak, almost melted.
Volcano Eyyafyatlayokud. Iceland
Not so long ago, the volcano paralyzed the work of several European airports. The eruption was estimated at 4 scores on the VEI scale. Some researchers believe that the Awakening of Eyafyatlaihokudl can become a starting mechanism for the eruption of Katley.
Kotopakh volcano. Ecuador
This is the most active volcano. After more than 150 years, the silences of Kotopakh again came to life in 2015. Fortunately, no one was injured.
Volcano Merapy. Island Java
One of the most active volcanoes is erupting at least twice a year, and a large eruptions are celebrated every seven years. Local residents have to be evacuated. The top of the Merapy smokes without ceasing.
Volcano Popochetetet. Mexico
The most powerful eruption occurred in 2000. He was preceded by 15 years of increased activity of the fiery mountain. In March 2016, Popochetetet raised a 2 km pair, gas and ashes to the height of 2 km. In the risk area there are cities of Mexico City and Puebla.
Vulcan Nevado del Ruiz. Colombia
This is a special plinian type volcano. Instead of fiery lava, death brings mud streams - laeraces. In 1985, 23 thousand people died in avalanche dirt. Under the daily threat is half a million local population.
People learned to predict the weather, but to say for sure when the volcano wakes up and the consequences of this is very difficult. Geologists, even using powerful equipment, can only roughly judge the approaching volcanic hazard.
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