Homa Mountain, Kenya in 1994

Mount Edziza, British Columbia, Canada as seen from Stewart-Cassiar Highway

An eruption of Pacaya, Guatemala in 1976

Mt. Banahaw, Luzon, Philippines in 1989

Kelimutu, Flores, Indonesia

A complex volcano, also called a compound volcano, is a volcano with more then one feature. They form because changes of their eruptive characteristics or the location of multiple vents in an area. Stratovolcanoes may form complex volcanoes, because they may overlap another from explosive eruptions, lava flows, pyroclastic flows and by repeated eruptions, to make multiple summits and vents. Stratovolcanoes could also form a large caldera that gets filled in by multiple small cinder cones, lava domes and craters may also develop on the caldera's rim. Image File history File linksMetadata No higher resolution available. ... Image File history File linksMetadata No higher resolution available. ... Homa Mountain is a volcano located in the Great Rift Valley, Kenya. ... Image File history File linksMetadata Size of this preview: 800 × 600 pixel Image in higher resolution (2048 × 1536 pixel, file size: 644 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Stikine Volcanic Belt... Image File history File linksMetadata Size of this preview: 800 × 600 pixel Image in higher resolution (2048 × 1536 pixel, file size: 644 KB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Stikine Volcanic Belt... Mount Edziza is a volcanic complex located in British Columbia, Canada. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seats  - Senate seats 36 6 Area Total  - Land  - Water  (% of total)  Ranked 5th 944,735 km² 925,186 km² 19,549 km... British Columbia provincial highway 37, the Cassiar Highway, is the northwesternmost highway in the province, and it is very scenic, passing through some of the most isolated areas of B.C. The highway first gained its 37 designation in 1975, and at that time, its southern terminus was at the... Image File history File links Size of this preview: 800 × 522 pixel Image in higher resolution (969 × 632 pixel, file size: 60 KB, MIME type: image/jpeg)Ashy eruption at Pacaya, shortly after a very large earthquake affected the area in 1976. ... Image File history File links Size of this preview: 800 × 522 pixel Image in higher resolution (969 × 632 pixel, file size: 60 KB, MIME type: image/jpeg)Ashy eruption at Pacaya, shortly after a very large earthquake affected the area in 1976. ... Pacaya is an active volcano in Guatemala, which first erupted approximately 23,000 years ago, and has erupted at least 23 times since the Spanish conquest of Guatemala. ... 1976 (MCMLXXVI) was a leap year starting on Thursday. ... Image File history File links Mount Banahao (Banahaw), Philippines Photo by Chris Newhall, 1989 (U.S. Geological Survey). ... Image File history File links Mount Banahao (Banahaw), Philippines Photo by Chris Newhall, 1989 (U.S. Geological Survey). ... Mount Banahaw is an extinct volcano located on the boundary of the provinces of Laguna and Quezon in Luzon, Philippines. ... Map of the Philippines showing the island groups of Luzon, Visayas, and Mindanao. ... 1989 (MCMLXXXIX) was a common year starting on Sunday of the Gregorian calendar. ... Image File history File links Flores_Moni_Kelimutu. ... Image File history File links Flores_Moni_Kelimutu. ... Two eastern volcanic lakes of Kelimutu Kelimutu is a small but well-known Indonesian volcano in central Flores Island with three summit crater lakes of varying colors. ... Map of Flores Island Flores (Portuguese for flowers) is one of the Lesser Sunda Islands, an island arc with an estimated area of 14,300 km² extending east from the Java island of Indonesia. ... For other uses, see Volcano (disambiguation). ... In archaeology, the term feature is generally used to refer to any nonportable remnant of human activity, such as a hearth, road, or house remains, later found or recovered by some archaeological endeavor. ... Stratovolcano Mount St. ... An explosive eruption is a volcanic term to describe a violent, explosive type of eruption. ... In computer programming jargon, lava flow is a problem in which computer code, usually written under less than optimal conditions, is put into production and then built on when still in a developmental state. ... Pyroclastic flows sweep down the flanks of Mayon Volcano, Philippines, in 1984 Pyroclastic flows are a common and devastating result of some volcanic eruptions. ... A topographical summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. ... Satellite image of Santorini. ... PuÊ»u ʻŌʻō, a cinder-and-spatter cone on KÄ«lauea, HawaiÊ»i Volcanic cones are among the simplest volcano formations in the world. ... One of the Mono Craters, an example of a rhyolite dome. ... Craters on Mount Cameroon Perhaps the most conspicuous part of a volcano is the crater, a basin of a roughly circular form within which occurs a vent (or vents) from which magma erupts as gases, lava, and ejecta. ...

Although a comparatively unusual type of volcano, they are incredibly widespread in the world and in geologic history. Metamorphosed ash flow tuffs are widespread in the Precambrian rocks of northern New Mexico, which describes that caldera complexes have been important for much of the Earth's history. Yellowstone National Park is on three partly covered caldera complexes. The Long Valley Caldera in eastern California is also a complex volcano; the San Juan Mountains in southwestern Colorado are formed on a group of Tertiary-age caldera complexes, and most of the Mesozoic and Tertiary rock of Nevada, Idaho, and eastern California are also caldera complexes and their erupted ash flow tuffs. The Bennett Lake Caldera in British Columbia and the Yukon Territory is another example of a Tertiary-age caldera complex. For other uses, see Volcano (disambiguation). ... Antarctica Oceania Africa Asia Europe North America South America Middle East Caribbean Central Asia East Asia North Asia South Asia Southeast Asia SW. Asia Australasia Melanesia Micronesia Polynesia Central America Latin America Northern America Americas C. Africa E. Africa N. Africa Southern Africa W. Africa C. Europe E. Europe N... // For other uses, see time scale. ... Metamorphism can be defined as the mineralogical, chemical and crystallographic changes in a solid-state rock, i. ... Welded tuff at Golden Gate in Yellowstone National Park Tuff (from the Italian tufo) is a type of rock consisting of consolidated volcanic ash ejected from vents during a volcanic eruption. ... The Precambrian (or Pre-Cambrian) is an informal name for the eons of the geologic timescale that came before the current Phanerozoic eon. ... The rocky side of a mountain creek near Orosí, Costa Rica. ... Capital Santa Fe Largest city Albuquerque Area  Ranked 5th  - Total 121,665 sq mi (315,194 km²)  - Width 342 miles (550 km)  - Length 370 miles (595 km)  - % water 0. ... Adjectives: Terrestrial, Terran, Telluric, Tellurian, Earthly Atmosphere Surface pressure: 101. ... Yellowstone National Park is a U.S. National Park located in the western states of Wyoming, Montana, and Idaho. ... Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain. ... Official language(s) English Capital  Sacramento Largest city  Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... The San Juan Mountains are a rugged mountain range in the Rocky Mountains in southwestern Colorado. ... Official language(s) English Capital Denver Largest city Denver Area  Ranked 8th  - Total 104,185 sq mi (269,837 km²)  - Width 280 miles (451 km)  - Length 380 miles (612 km)  - % water 0. ... For other uses, see Tertiary (disambiguation). ... The Mesozoic Era is one of three geologic eras of the Phanerozoic eon. ... This article does not adequately cite its references or sources. ... This article or section does not adequately cite its references or sources. ... Welded tuff at Golden Gate in Yellowstone National Park Tuff (from the Italian tufo) is a type of rock consisting of consolidated volcanic ash ejected from vents during a volcanic eruption. ... The Bennett Lake Caldera is a huge 50 million year old extinct caldera complex that spans across the BC-Yukon border in Canada. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seats  - Senate seats 36 6 Area Total  - Land  - Water  (% of total)  Ranked 5th 944,735 km² 925,186 km² 19,549 km... Motto: none Other Canadian provinces and territories Capital Whitehorse Largest city Whitehorse Commissioner Jack Cable Premier Dennis Fentie (Yukon Party) Area 482,443 km² (9th)  - Land 474,391 km²  - Water 8,052 km² (1. ...

Examples

• Mount Edziza (British Columbia, Canada)
• Mount Meager (British Columbia, Canada)
• Mount Silverthrone (British Columbia, Canada)
• Bennett Lake Caldera (British Columbia/Yukon, Canada)
• North Sister Field (Oregon, United States)
• South Sister (Oregon, United States)
• Valles Caldera (New Mexico, United States)
• Yellowstone Caldera (Wyoming, United States)
• Long Valley Caldera (California, United States)
• Pacaya (Guatemala)
• Pilas, Las (Nicaragua)
• Trois Pitons, Morne (West Indies)
• Akita-Take-Yama (Honshū, Japan)
• Mount Asama (Honshū, Japan)
• Mundua (New Britain, Papua New Guinea)
• St. Andrew Strait (Admiralty Islands, Papua New Guinea)
• Asacha (Kamchatka Peninsula, Russia)
• Grozny Group (Kuril Islands, Russia)
• Mount Banahaw (Luzon, Philippines)
• Ischia (Italy)
• Homa Mountain (Eastern Africa, Kenya)
• Galeras (Colombia, South America)
• McDonald Islands (Indian Ocean, Australia)
• Suretamatal (Vanuatu)
• Three Kings (New Zealand)
• Whale Island (New Zealand)
• Kelimutu (Flores Island, Indonesia)

Mount Edziza is a volcanic complex located in British Columbia, Canada. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seats  - Senate seats 36 6 Area Total  - Land  - Water  (% of total)  Ranked 5th 944,735 km² 925,186 km² 19,549 km... Mount Meager is a dormant stratovolcano with at least 8 vents, located 150 km north of Vancouver, British Columbia, Canada. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seats  - Senate seats 36 6 Area Total  - Land  - Water  (% of total)  Ranked 5th 944,735 km² 925,186 km² 19,549 km... Mount Silverthrone is a deeply dissected caldera complex in the Pacific Ranges of the Coast Mountains of British Columbia, located at the northern end of the Garibaldi Volcanic Belt containing rhyolitic, dacitic and andesitic lava domes, lava flows and breccia. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seats  - Senate seats 36 6 Area Total  - Land  - Water  (% of total)  Ranked 5th 944,735 km² 925,186 km² 19,549 km... The Bennett Lake Caldera is a huge 50 million year old extinct caldera complex that spans across the BC-Yukon border in Canada. ... Motto: Splendor Sine Occasu (Latin: Splendour without diminishment) Official languages English Capital Victoria Largest city Vancouver Lieutenant-Governor Iona Campagnolo Premier Gordon Campbell (BC Liberal) Parliamentary representation  - House seats  - Senate seats 36 6 Area Total  - Land  - Water  (% of total)  Ranked 5th 944,735 km² 925,186 km² 19,549 km... This article or section is in need of attention from an expert on the subject. ... Official language(s) None Capital Salem Largest city Portland Area  Ranked 9th  - Total 98,466 sq mi (255,026 km²)  - Width 260 miles (420 km)  - Length 360 miles (580 km)  - % water 2. ... The Three Sisters are three volcanic peaks of the Cascade Range, located about 15 miles SW from the nearest town of Sisters, Oregon. ... Official language(s) None Capital Salem Largest city Portland Area  Ranked 9th  - Total 98,466 sq mi (255,026 km²)  - Width 260 miles (420 km)  - Length 360 miles (580 km)  - % water 2. ... Valle Grande (Va-lye Gra-n-de), also known as the Valles Caldera, is a pristine area in the Jemez Mountains of northern New Mexico in the United States. ... Capital Santa Fe Largest city Albuquerque Area  Ranked 5th  - Total 121,665 sq mi (315,194 km²)  - Width 342 miles (550 km)  - Length 370 miles (595 km)  - % water 0. ... The Yellowstone Caldera is a volcanic caldera in Yellowstone National Park in the United States. ... Official language(s) English Capital Cheyenne Largest city Cheyenne Area  Ranked 10th  - Total 97,818 sq mi (253,348 km²)  - Width 280 miles (450 km)  - Length 360 miles (580 km)  - % water 0. ... Long Valley Caldera is a depression in eastern California that is adjacent to Mammoth Mountain. ... Official language(s) English Capital  Sacramento Largest city  Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... Pacaya is an active volcano in Guatemala, which first erupted approximately 23,000 years ago, and has erupted at least 23 times since the Spanish conquest of Guatemala. ... The Caribbean or the West Indies is a group of islands in the Caribbean Sea. ... HonshÅ« (本州 Literally Main State) is the largest island of Japan, called the Mainland; it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait. ... Mount Asama (also known as Asama-yama) (æµ…é–“å±±) is an active volcano on central Honshu, the main island of Japan, on the border between Gunma and Nagano prefectures. ... HonshÅ« (本州 Literally Main State) is the largest island of Japan, called the Mainland; it is south of Hokkaido across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyushu across the Kanmon Strait. ... (This article is about the island of New Britain in Papua New Guinea. ... The Admiralty Islands are a group of 18 islands in the Bismarck Archipelago. ... Asacha is a volcano located in the southern part of Kamchatka Peninsula, Russia. ... Kamchatka is the home of many volcanoes. ... Grozny Group is a volcano located in the central part of Iturup Island, Kuril Islands, Russia. ... Location of Kuril Islands in the Western Pacific. ... Mount Banahaw is a dormant volcano located on the boundary of the provinces of Laguna and Quezon in Luzon, Philippines. ... Map of the Philippines showing the island groups of Luzon, Visayas, and Mindanao. ... The island of Ischia near Naples, Italy. ... Homa Mountain is a volcano located in the Great Rift Valley, Kenya. ... Categories: Africa geography stubs | Eastern Africa ... Galeras is a volcano in Colombia, near the city of Pasto. ... South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ... Heard Island, from NASA World Wind Heard Island and the McDonald Islands are uninhabited, barren islands located in the Southern Ocean at 53°6S, 72°31E, about two-thirds of the way from Madagascar to Antarctica. ... Three Kings is a suburb of Auckland, New Zealand, named after the three-peaked volcano within it. ... Whale Island (or Motuhora) is a small island located off the Bay of Plenty coast of New Zealands North Island. ... Two eastern volcanic lakes of Kelimutu Kelimutu is a small but well-known Indonesian volcano in central Flores Island with three summit crater lakes of varying colors. ... There is more than one entry in wikipedia for Flores Island: Flores, an island arc in Indonesia. ...

See also

• Stratovolcano
• Caldera