Volcanic calderas Volcanic calderas A caldera is a volcanic feature formed by the collapse of a volcano into itself. Calderas may be filled with water, creating crater lakes. The word 'caldera' comes from a Spanish word meaning "cauldron". ...more on Wikipedia about "Caldera"
Crater Lake is a lake in the U.S. state of Oregon that is 5 by 6 miles (8 by 9.6 km) and 1958 ft (597 m) deep. It is Crater Lake National Park's most prominent feature and is famous for its deep blue color, water clarity and vertical driftwood, named Old Man of the Lake. The lake partly fills a nearly 4000 ft (1220 m) deep caldera that was formed around 6900 years ago by the collapse of the volcano Mount Mazama. ...more on Wikipedia about "Crater Lake"
(Haleakala) Haleakalā or East Maui Volcano is a massive shield volcano that forms more than 75% of the Hawaiian Island of Maui. ...more on Wikipedia about "Haleakala"
The Island Park Caldera is a large caldera located in eastern Idaho just to the southwest of the Yellowstone Caldera. The caldera is 18 miles long and 23 miles wide. ...more on Wikipedia about "Island Park Caldera"
Iwo Jima ( Japanese 硫黄島 Iōtō, or Iōjima, meaning " sulfur island") is a volcanic island in Japan, part of the Volcano Islands (also known as the Ogasawara Islands), approximately 650 nautical miles (1200 km) south of Tokyo (24.78°N, 141.32°E). It has an approximate area of 8 square miles (21 km2). The most prominent feature of the island is Mount Suribachi (also known as Suribachiyama), a volcano which is thought to be dormant, and is 546 feet (166 m) in height. Iwo Jima is unusually flat and featureless for a volcanic island. Suribachi is the only obviously volcanic feature, although Iwo Jima is almost entirely volcanic in origin. ...more on Wikipedia about "Iwo Jima"
(Kilauea) Kīlauea is an active volcano in the Hawaiian Islands, one of five shield volcanoes that together form the Island of Hawai i. In Hawaiian, the word kīlauea means "spewing" or "much spreading", in reference to the mountain's frequent outpouring of lava. It is presently the most active volcano and certainly the most visited active volcano on the planet. Kīlauea is just the most recent of a long series of volcanoes that created the Hawaiian Archipelago, as the Pacific Plate moved over a more or less fixed hotspot in the earth's mantle (see, however, Lo ihi). ...more on Wikipedia about "Kilauea"
Krafla is a volcanic system with a diameter of about 20 km in the north of Iceland in the Mývatn region. Its highest peak reaches up to 818 m. ...more on Wikipedia about "Krafla"
Krakatoa ( Indonesian name: Krakatau) is a volcano near the Indonesian island of Rakata in the Sunda Strait. It has erupted repeatedly, massively and with disastrous consequences throughout recorded history. The best known of these events occurred in late August, 1883. ...more on Wikipedia about "Krakatoa"
La Garita Caldera is a large caldera located in the San Juan Mountains in southwestern Colorado. It is one of a number of calderas that formed during a massive ignimbrite flare-up in Colorado, Utah and Nevada from 40 to 25 million years ago. La Garita was the site of truly enormous eruptions about 26-28 million years ago, during the Oligocene Epoch. The largest eruption of La Garita is also the largest known eruption to have occurred anywhere on Earth. This was the Fish Canyon Tuff, which has a volume of approximately 5,000 cubic kilometers. The scale is unimaginable - for comparison, the May 18, 1980 eruption of Mt. St. Helens was only 1.2 cubic kilometers in volume. The area devastated by the eruption must have covered a significant chunk of what is now Colorado, and ash could have fallen as far as the east coast of North America and the Caribbean. ...more on Wikipedia about "La Garita Caldera"
Masaya is a large basaltic volcanic caldera located 20 km south of Managua, Nicaragua, Central America and is Nicaragua's first and largest National Park. The volcanic complex is composed of a nested set of calderas and craters, the largest of which is Las Sierras shield and caldera. Within this caldera lies Masaya Volcano sensu stricto, a shallow shield composed of basaltic lavas and tephras. This hosts Masaya caldera, formed 2500 years ago by an 8-km³ basaltic ignimbrite eruption. Inside this caldera a new basaltic complex has grown from eruptions mainly on a semi-circular set of vents that include the Masaya and Nindiri cones. The latter host the pit craters of Masaya, Santiago, Nindiri and San Pedro. Observations in the walls of the pit craters indicate that there have been several episodes of cone and pit crater formation. ...more on Wikipedia about "Masaya"
Mauna Loa is an active shield volcano in the Hawaiian Islands, one of five volcanic peaks that together form the Island of Hawaii. In Hawaiian, mauna loa means "long mountain". The summit caldera of the volcano is called Moku‘āweoweo. Mauna Loa is Earth's largest volcano and is the exposed (subareal) part of an enormous mid-ocean mountain. Indeed, it is the Earth's most massive mountain, with a volume estimated at approximately 18,000 cubic miles (75,000 km³) (Kaye, 2002) and a height—measured from its base some 5,000 m (over 16,000 ft) below the ocean surface to the highest point at 4,170 m (13,680 ft) above sea level—of over 9,000 m (> 30,000 ft). Mauna Loa is about 36 m (120 ft) lower than its neighbor, Mauna Kea. ...more on Wikipedia about "Mauna Loa"
Mount Aniakchak is a caldera (about 10 km in diameter) located in the Aleutian Range of Alaska, United States. The area around the volcano is the Aniakchak National Monument and Preserve, maintained by the National Park Service. ...more on Wikipedia about "Mount Aniakchak"
The historically active Mount Batur (Gunung Batur) is located at the center of two concentric calderas north west of Mount Agung, Bali, Indonesia. The south east side of the larger 10×13 km caldera contains a caldera lake. The inner 7.5-kilometer-wide caldera, which was formed during emplacement of the Bali (or Ubud) ignimbrite, has been dated at about 23,670 and 28,500 years ago (Wheller 1986, Sutawidjaja et al. 1992). ...more on Wikipedia about "Mount Batur"
Mount Gambier is a city of 23,282 people 2001 census which is, after Adelaide, the largest population centre in South Australia, it was named for Admiral James Gambier. ...more on Wikipedia about "Mount Gambier, South Australia"
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Newberry Caldera is the caldera on Newberry Volcano, a shield volcano in central Oregon. The caldera is oval-shaped and four by five miles (6 by 7 km) in diameter (with its major axis trending east-west). ...more on Wikipedia about "Newberry Caldera"
Novarupta, meaning "new eruption", is a volcano located on the Alaska Peninsula in the Katmai area, about 290 miles southwest of Anchorage. Novarupta sits below Mount Katmai. Its eruption of June 6- June 8, 1912 was ten times more powerful than the 1980 eruption of Mount St. Helens and also lead to the formation of this 841 metre (2759 ft) volcano. ...more on Wikipedia about "Novarupta"
Rabaul caldera is the large volcano situated in East New Britain, Papua New Guinea. It derives its name from the town of Rabaul situated inside the caldera. The highest of its multiple peaks is 688m. ...more on Wikipedia about "Rabaul caldera"
The Rotorua Caldera is one of several large volcanoes located in the Taupo Volcanic Zone on the North Island of New Zealand. Its last major eruption was about 140,000 years ago. At this time, the Mamaku Ignimbrite, covering about 4000 square km, was deposited. After the eruption, the magma chamber underneath the volcano collapsed. The circular depression left behind is the current caldera, about 16 km (10 miles) in diameter and now occupied by a lake. Mokoia Island, close to the centre of the lake, is a rhyolite dome. ...more on Wikipedia about "Rotorua Caldera"
Santorini ( Greek Σαντορίνη) is a small, circular group of volcanic islands located in the Aegean Sea, about 200 km south-east from the mainland of Greece (latitude: 36.40°N - longitude: 25.40°E). It is also known by the name of the largest island in the archipelago, Thira or Thera (Θήρα; see also List of traditional Greek place names). It is the southernmost member of the Cyclades group of islands, with an area of approximately 73 km² (28 sq mi), and in 2001 had an estimated population of 13,600. ...more on Wikipedia about "Santorini"
Tofua Caldera is the summit caldera of a steep-sided composite cone that forms Tofua Island. Pre-caldera activity is recorded by a sequence of pyroclastic deposits and lavas constituting the older cone, followed on the northern part of the island by froth lavas or welded and unwelded ignimbrite. Following caldera collapse, lavas were erupted from the northern part of the island and the caldera-rim fissure zone, scoria and lavas from the caldera-wall fissure zones, pyroclastics and lavas from intracaldera cones, and recent pyroclastic fall deposits on the outer cone. Eruptive products are mainly basaltic andesites and andesites, plus occasional dacite flows within the older cone. A postcaldera cone with fumarolic activity (Lofia) is situated in the northern part of the caldera; a lake of unknown depth occupies most of the remainder. ...more on Wikipedia about "Tofua"
Tweed Volcano was a prehistoric shield volcano in northeastern New South Wales, Australia, that erupted over a hotspot that existed over this part of the continent between 23 million and 20 million years ago. Mount Warning, Tweed Valley and Byron Bay are among the remnants of this volcano that was originally approximately 100 km in diameter and twice the height of Mount Warning today. Tweed Valley in particular is a large erosion ...more on Wikipedia about "Tweed Volcano" My way is shortopedia
Vulcano is a small volcanic island ( ) in the Tyrrhenian Sea, about 25 km north of Sicily and the southernmost of the Aeolian Islands. It is 21 square kilometres in area, rises to 499 metres, and contains several volcanic centres, including one of four active non-submarine volcanos in Italy and the formerly separate islet of Vulcanello. ...more on Wikipedia about "Vulcano"
Waimea Canyon is a spectacular canyon, approximately ten miles (16 km) long and up to 3,000 feet (900 m) deep, located on the western side of Kaua‘i in the Hawaiian Islands. Dubbed the " Grand Canyon of the Pacific" by Mark Twain, the canyon was formed by a deep incision of the Waimea River arising from the extreme rainfall on the island's central peak, Mount Wai‘ale‘ale, among the wettest places on earth. ...more on Wikipedia about "Waimea Canyon State Park"
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