page_title: Mount Tambora
hierarchical_section_title: Mount Tambora
caption_attribution_description: Bahasa Indonesia: Foto astronot ini menggambarkan kaldera puncak gunung Tambora. Kaldera ini berdiameter 6 km dan terbentuk dengan dalam 1.100 m ketika puncak Gunung Tambora yang berketinggian kira-kira 4.000 m telah tidak ada, dan ruangan magma di bawahnya menjadi kosong setelah letusan tahun 1815. Saat ini dasar kawah menjadi lokasi sebuah danau air tawar musiman, deposit sedimen yang belum lama, aliran lava kecil, dan kubah yang terbentuk selama abad kesembilan belas dan kedua puluh. Deposit tephra yang berlapis terlihat di sepanjang sisi barat laut bibir kawah. Fumarol aktif, atau ventilasi uap, masih ada di kaldera. English: This detailed astronaut photograph depicts the summit caldera of the volcano. The huge caldera—6 kilometers in diameter and 1,100 meters deep—formed when Tambora’s estimated 4,000-meter-high peak was removed, and the magma chamber below emptied during the 1815 eruption. Today the crater floor is occupied by an ephemeral freshwater lake, recent sedimentary deposits, and minor lava flows and domes emplaced during the nineteenth and twentieth centuries. Layered tephra deposits are visible along the north-western crater rim. Active fumaroles, or steam vents, still exist in the caldera. Français&#160;: Photographie de la caldera sommitale du mont Tambora, en Indonésie. Cette caldera est immense, avec 6 km de diamètre et 1000 m de profondeur. Sa formation date de l'éruption de 1815, qui est l'éruption volcanique la plus importante de l'histoire. Avant l'éruption, le Tambora formait un pic d'une altitude d'environ 4000 m. Aujourd'hui, les lèvres de la caldera sont à 2500 m d'altitude. Le fond de la caldera est occupé par un lac temporaire, des coulées de laves provenant d'éruptions mineures et des fumeroles. Deutsch: Krater des Tambora Русский: Эта фотография подробно показывает кальдеру вулкана Тамбора, имеющую 6 — 7 километров в диаметре. Она образовалась в результате катастрофического извержения 1815 года, когда верхняя часть вулкана обрушилась из-за опустения магматической камеры под ним. Сегодня внутри кальдеры находится небольшое пресноводное озеро, лавовые купола, а в северо-западной части кратера имеются многослойные отложения тефры. Кроме того кальдере присуща фумарольная активность. ISS Crew Earth Observations: ISS020-E-06563 Identification Mission ISS020 (Expedition 20) Roll E Frame 06563 Country or Geographic Name Indonesia Features MOUNT TAMBORA, SUMBAWA ISLAND, CALDERA Center Point Latitude -8.3° N Center Point Longitude 118.0° E Camera Camera Tilt 27° Camera Focal Length 800&#160;mm Camera Nikon D3 Film 4256 x 2832 pixel CMOS sensor, 36.0mm x 23.9mm, total pixels: 12.87 million, Nikon FX format. Quality Percentage of Cloud Cover 0-10% Nadir What is Nadir? Date 2009-06-03 Time 00:08:06 Nadir Point Latitude -8.2° N Nadir Point Longitude 119.6° E Nadir to Photo Center Direction West Sun Azimuth 60° Spacecraft Altitude 189 nautical miles (350&#160;km) Sun Elevation Angle 26° Orbit Number 371 Original image caption On April 10, 1815, the Tambora Volcano produced the largest eruption in history. An estimated 150 cubic kilometers of tephra—exploded rock and ash—resulted, with ash from the eruption recognized at least 1,300 kilometers away to the northwest. While the April 10 eruption was catastrophic, historical records and geological analysis of eruption deposits indicate that the volcano had been active between 1812 and 1815. Enough ash was put into the atmosphere from the April 10 eruption to reduce incident sunlight on the Earth’s surface and cause global cooling, resulting in the 1816 “year without a summer.” This detailed astronaut photograph depicts the summit caldera of the volcano. The huge caldera—6 kilometers in diameter and 1,100 meters deep—formed when Tambora’s estimated 4,000-meter-high peak was removed, and the magma chamber below emptied during the April 10 eruption. Today the crater floor is occupied by an ephemeral freshwater lake, recent sedimentary deposits, and minor lava flows and domes emplaced during the nineteenth and twentieth centuries. Layered tephra deposits are visible along the northwestern crater rim. Active fumaroles, or steam vents, still exist in the caldera. In 2004, scientists discovered the remains of a village, that was once underground but now has resurfaced. They found two adults buried under approximately 3 meters of ash in a gully on Tambora’s flank—remnants of the former Kingdom of Tambora preserved by the 1815 eruption that destroyed it. The similarity of the Tambora remains to those associated with the AD 79 eruption of Mount Vesuvius has led to the Tambora site’s description as “the Pompeii of the East.”
context_page_description: Mount Tambora, or Tomboro, is an active stratovolcano in the northern part of Sumbawa, one of the Lesser Sunda Islands of Indonesia. It was formed due to the active subduction zones beneath it, and before its 1815 eruption, it was more than 4,300 metres high, making it one of the tallest peaks in the Indonesian archipelago.
  Tambora's 1815 eruption was the largest in recorded human history and the largest of the Holocene. The magma chamber under Tambora had been drained by pre-1815 eruptions and underwent several centuries of dormancy as it refilled. Volcanic activity reached a peak that year, culminating in the eruption. The explosion was heard on Sumatra island, more than 2,000 kilometres away. Heavy volcanic ash rains were observed as far away as Borneo, Sulawesi, Java and Maluku islands, and the maximum elevation of Tambora was reduced from about 4,300 metres to 2,850 metres. Although estimates vary, the death toll was at least 71,000 people. The eruption caused global climate anomalies in the following years, while 1816 became known as the "year without a summer" due to the impact on North American and European weather.
context_section_description: Mount Tambora, or Tomboro, is an active stratovolcano in the northern part of Sumbawa, one of the Lesser Sunda Islands of Indonesia. It was formed due to the active subduction zones beneath it, and before its 1815 eruption, it was more than 4,300 metres (14,100 feet) high, making it one of the tallest peaks in the Indonesian archipelago.
  Tambora's 1815 eruption was the largest in recorded human history and the largest of the Holocene (10,000 years ago to present). The magma chamber under Tambora had been drained by pre-1815 eruptions and underwent several centuries of dormancy as it refilled. Volcanic activity reached a peak that year, culminating in the eruption. The explosion was heard on Sumatra island, more than 2,000 kilometres (1,200 miles) away. Heavy volcanic ash rains were observed as far away as Borneo, Sulawesi, Java and Maluku islands, and the maximum elevation of Tambora was reduced from about 4,300 metres (14,100 ft) to 2,850 metres (9,350 feet). Although estimates vary, the death toll was at least 71,000 people. The eruption caused global climate anomalies in the following years, while 1816 became known as the "year without a summer" due to the impact on North American and European weather. In the Northern Hemisphere, crops failed and livestock died, resulting in the worst famine of the century.
  During a 2004 excavation, archaeologists discovered the remains of a house destroyed and buried by the 1815 eruption. The site has remained intact beneath three metres of pyroclastic deposits and provides insight into the culture that vanished. Today, Mount Tambora is closely monitored for volcanic activity; a powerful eruption would affect millions of Indonesians. The mountain is administered by the Bima Regency in the northeast and by the Dompu Regency in the west and south.
caption: Caldera of Mount Tambora
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