Volcanoes are classified by the eruption type and by the volcanic cone shape. There are three basic cone shapes and six eruption types. The three cone shapes are
cinder cones, shield cones, and composite cones or stratovolcanoes
What are the 3 types of volcanoes according to activity?
Volcanoes are classified as
active, dormant, or extinct
. Active volcanoes have a recent history of eruptions; they are likely to erupt again. Dormant volcanoes have not erupted for a very long time but may erupt at a future time.
What are the top 3 active volcanoes?
- Eyjafjallajokull – Iceland. …
- Mount Vesuvius – Italy. …
- Mount Nyiragongo – Congo. …
- Taal Volcano – Philippines. …
- Mount Merapi – Indonesia. …
- Galeras – Colombia. …
- Sakurajima – Japan. …
- Santa Maria – Guatemala. Source: NASA Earth Observatory.
What are the different types of volcano according to shape and activity?
| Type of Volcano Shape Height | Cinder Cone, AKA Scoria Cone Symmetrical cone Up to 1,200 feet (370 meters) | Shield Tall and broad Up to over 30,000 feet (9,000 meters) | Composite, AKA Strato Tall, steep, and symmetrical Up to 8,000 feet (2,400 meters) | Lava Dome Dome Up to 330 feet (100 meters) |
|---|
What are the 3 parts of Volcano?
The three main parts of a volcano are
the chamber, the vent, and the crater
. The chamber is where the magma is stored.
What are the 7 types of volcano?
- Cinder Cone Volcanoes: These are the simplest type of volcano. …
- Composite Volcanoes: Composite volcanoes, or stratovolcanoes make up some of the world's most memorable mountains: Mount Rainier, Mount Fuji, and Mount Cotopaxi, for example. …
- Shield Volcanoes: …
- Lava Domes:
What are the 3 major types of magma?
The high temperatures and pressure under Earth's crust keep magma in its fluid state. There are three basic types of magma:
basaltic, andesitic, and rhyolitic
, each of which has a different mineral composition.
Which country has no volcano?
Even though
Australia
is home to nearly 150 volcanoes, none of them has erupted for about 4,000 to 5,000 years! The lack of volcanic activity is due to the island's location in relation to a tectonic plate, the two layers of the Earth's crust (or lithosphere).
What are the 10 active volcano?
- Eyjafjallajökull, Iceland. …
- Mount Vesuvius, Italy. …
- Mount Etna, Italy. …
- Mount Merapi, Indonesia. …
- Mount Nyiragongo, Democratic Republic of the Congo. …
- Pacaya, Guatemala. …
- Arenal Volcano, Costa Rica. …
- Kīlauea, Hawaii.
What is the largest volcano in the world?
Mauna Loa on the Island Hawaiʻi
is the world's largest volcano.
What is the 22 active volcanoes in the Philippines?
| Item No. Name of Volcano Province | 19 Musuan (Calayo) Bukidnon in Mindanao | 20 Parker South Cotobato/General Santos/ North Cotabato/Sarangani Provinces in Mindanao | 21 Pinatubo Boundaries of Pampanga, Tarlac and Zambales in Luzon | 22 Ragang Lanao del Sur and Cotobato in Mindanao |
|---|
Which type of volcano is most explosive?
Stratovolcanoes
are considered the most violent. Mount St. Helens, in Washington state, is a stratovolcano that erupted on May 18, 1980.
What are the 4 types of volcano?
Different types of volcanoes erupt in different ways. Geologists usually group volcanoes into four main types:
cinder cones, composite volcanoes, shield volcanoes, and lava domes
. You can learn about some of the different types of volcanoes in order to understand the dangers of volcanoes.
What is a part of volcano?
The image below shows the different parts of a volcano. …
Sill – A flat
piece of rock formed when magma hardens in a crack in a volcano. Vent – An opening in Earth's surface through which volcanic materials escape. Flank – The side of a volcano. Lava – Molten rock that erupts from a volcano that solidifies as it cools.
What are ash clouds also called?
A pyroclastic flow (also known as
a pyroclastic density current or a pyroclastic cloud
) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ground away from a volcano at average speeds of 100 km/h (62 mph) but is capable of reaching speeds up to 700 km/h (430 mph) …
What shape is a shield volcano?
Shield volcanoes, the third type of volcano, are built almost entirely of fluid lava flows. Flow after flow pours out in all directions from a central summit vent, or group of vents, building
a broad, gently sloping cone of flat, domical shape
, with a profile much like that of a warrior's shield.
