For Class 7, a volcano is a mountain or opening in the Earth's crust where hot, melted rock (magma), ash, and gases escape from deep inside the Earth, forming cone-shaped mountains as layers build up from eruptions, classified as active, dormant, or extinct.
A volcano is an opening on the surface of a planet or moon that allows material warmer than its surroundings to escape from its interior. When this material escapes, it causes an eruption. An eruption can be explosive, sending material high into the sky.
Alert Level 3
Magma is close to the crater. If trend is one of increasing unrest, eruption is possible within weeks. Extension of Danger Zone in the sector where the crater rim is low will be considered. View Mayon Volcano Bulletin.
The four main types of volcanoes are Cinder Cones, Shield Volcanoes, Composite Volcanoes (Stratovolcanoes), and Lava Domes, differing in shape, size, eruption style, and magma type, with Shield volcanoes having gentle slopes from fluid lava and Composites forming steep cones from explosive ash layers. Cinder cones are small piles of ash, while lava domes are steep mounds of thick lava, and calderas (like supervolcanoes) represent massive collapsed craters.
A volcano is a mountain or hill with an opening. When a volcano erupts, magma is pushed up through the opening with great force. When magma reaches the Earth's surface, it is called lava. Lava can be as hot as 2,200°F (1,204°C). Some volcanic eruptions are explosive.
Put simply, a volcano is an opening in the Earth's surface. Usually found in a mountain, the opening allows gas, hot magma and ash to escape from beneath the Earth's crust.
noun. volcano [noun] a hill or mountain with an opening through which molten rock, ashes etc periodically erupt, or have erupted in the past, from inside the earth. (Translation of wulkan from the PASSWORD Polish–English Dictionary © 2014 K Dictionaries Ltd)
When enough magma builds up in the magma chamber, it forces its way up to the surface and erupts, often causing volcanic eruptions. In the ocean, volcanoes erupt along cracks that are opened in the ocean floor by the spreading of two plates called a mid-ocean ridge .
Most of these volcanoes are thousands of feet deep, and difficult to find. But in May of 2009, scientists captured the deepest ocean eruption ever found. Nearly 4000 feet below the surface of the Pacific Ocean – in an area between Samoa, Fiji and Tonga - the West Mata volcano was discovered.
The 3rd largest volcano in the world depends on the measurement, but it's commonly cited as Mount Teide in Spain (measured from the ocean floor) or Nevado Tres Cruces (measured by elevation above sea level), following massive Hawaiian volcanoes like Mauna Loa and Mauna Kea. Teide is significant for its total height from base to summit, while Tres Cruces is notable for its high peak elevation.
2. Moderate to heightened volcanic unrest. Volcanic unrest hazards, potential for eruption hazards.
In fact, without them, life on Earth wouldn't exist. Volcanoes drive the recycling of essential elements and greenhouse gases that otherwise stay “locked” belowground. Without this recycling, our planet would be as lifeless as Mars.
The word "volcano" comes from the little island of Vulcano (with a U) in the Mediterranean Sea off Sicily. Centuries ago, the people living in this area believed that Vulcano (with a U) was the chimney of the forge of Vulcan -- the blacksmith of the Roman gods.
The Ring of Fire. The Ring of Fire is home to 75% of the world's volcanoes and 90% of its earthquakes. The Ring of Fire is a roughly 25,000-mile chain of volcanoes and seismically active sites that outline the Pacific Ocean.
Rising gradually to more than 4 km (2.5 mi) above sea level, Hawaii's Mauna Loa is the largest active volcano on our planet. Its submarine flanks descend to the sea floor an additional 5 km (3 mi), and the sea floor in turn is depressed by Mauna Loa's great mass another 8 km (5 mi).
Vulcan (Latin: Vulcanus, in archaically retained spelling also Volcanus, both pronounced [wʊɫˈkaːnʊs]) is the god of fire including the fire of volcanoes, deserts, metalworking and the forge in ancient Roman religion and myth.
In total Guatemala is the home to 37 official volcanoes, three of them being in constant activity–Pacaya, Fuego and Santiaguito. Up next, we leave you with a list of the most popular volcanoes in Guatemala and some insider tips to get you ready for your next adventure.
Moreover, they released gases that helped form our oceans and our atmosphere billions of years ago — two features that enabled life to thrive here. To this day, volcanoes help keep Earth warm, wet and habitable.
According to the catalog "Volcanoes of the World" by Smithsonian Institution volcanologists Tom Simkin and Lee Siebert, 9 percent of eruptions end in less than one day, 16 percent within two days, 24 percent within one week, 30 percent within two weeks, 43 percent within a month, 53 percent within two months, 83 ...
Eruptive products and the forces that produce them shape the landscape, sometimes removing land and sometimes adding to it. For example in 1973, in Iceland, the volcano of Eldfell on the island of Heimaey erupted.
Igual literally means "equal" but can be used as "me too" in informal speech. Igualmente means "equally".
A volcano, erupting with smoke and lava.
This common interjection variously expresses surprise, concern, and admiration.