Volcanoes

Volcano is the Earth's crust opening that allows lava, gas and debris to escape to the surface. There are the most active volcanoes in Alaska, Hawaii, California and Oregon, but there are also active volcanoes in other states and regions. Volcanic eruptions include lava and other debris, flow rates up to 100 miles per hour, destroying all of that road. Volcanic ash may move 100 miles and cause serious health problems. With volcanic eruption the following is possible.

Ask local disaster management evacuation and housing planning, and potential protection against ash content

Learn about the community warning system. Volcano Notification Service (VNS) is a free service that sends notifications about volcanic activity. Please sign up for a reminder at https://volcanoes.usgs.gov/vns2/

If you need to evacuate immediately, or if the service is interrupted, please obtain the necessary supplies in advance. Remember the specific needs of everyone, including medicine. Do not forget the needs of pets

Avoid the valleys downstream and downstream of the volcano. The rubble and the ash are carried by the wind and gravity

If you have enough supplies, you can take a temporary shelter from volcanic ash. Cover vents and tighten doors and windows

If you are outdoors, stimulate the skin and protect yourself from falling ash that may damage the airways, eyes, and open wounds. Please use a passed, certified mask like N95. The Centers for Disease Control and Prevention (CDC) has instructions from manufacturers on a list of certified masks and how to use the mask.

Send text messages and use social media to keep in touch with family and friends. After the disaster, the telephone system is usually very busy. You can see emergency calls

Please do not drive in heavy ash. If you drive it, the volcanic ash will ignite and the engine and the vehicle may stall.

If you have problems with breathing, please avoid contact with ash. I am indoors until I say the authorities are safe to go out

Do not get on the train to get rid of ashes unless you are under guidance or training. If ash should be removed, ash will smooth the surface so be very careful. Be careful not to add extra weight to overloaded roof

Complex volcano is one of the most dangerous volcanoes on earth. Hundreds of thousands of years of complex volcanoes have been formed by multiple eruptions. The volcanic eruption forms a composite volcano that is layered to a height of several kilometers. Some layers may be formed by lava, but others may be ash, streams of rocks and volcanic debris. The compound volcano also accumulates a large amount of thick magma that blocks the inside of the volcano and causes it to explode on a large volcanic eruption. A larger caldera like the Yellowstone Crater is incredibly powerful and can cover the entire American ash.

Geologists have identified three major types of volcanoes. There is a shield shaped volcano formed by low viscous lava that can flow over long distances. There is a volcanic conical volcano formed by the eruption of lava, ash, rocks formed around the crater. However, the last type is a complex volcano, the most famous volcano in the world (and the most dangerous volcano) in the world. Hundreds of thousands of years of complex volcanoes have been formed by multiple eruptions. The volcanic eruption forms a composite volcano that is layered to a height of several kilometers. Some layers may be formed by lava, but others may be ash, streams of rocks and volcanic debris. Complex volcanoes also accumulate large amounts of thick magma, block the interior of volcanoes and explode it during volcanic eruptions.

There are various kinds of volcano such as shield volcano, compound volcano, dome volcano, cinder corn. However, when children are made to draw a volcano, in most cases, a picture of a composite volcano will be taken. Reason? The compound volcano forms the most common steep cone shape in the picture. They are also related to the most intense and most important volcanic eruptions in history. Complex volcano - also known as layered volcano - named for their composition. These volcanoes consist of layers of pyroclasts such as lava, pumice, volcanic ash, volcanic ash. Each layer is stacked every eruption. Because magma is sticky, the volcano forms a steep cone, not a circle.