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World map with the middle latitudes highlighted in red Extratropical cyclone formation areas. The middle latitudes, also called the mid-latitudes (sometimes spelled midlatitudes) or moderate latitudes, are spatial regions on either hemisphere of Earth, located between the Tropic of Cancer (latitude 23°26′09.7″) and the Arctic Circle (66°33′50.3″) in the northern hemisphere and ...
The volcanic activity has gradually shifted from SE to NW (from offshore to onshore). The Valle del Bove is the former eastern flank of the volcano, which collapsed about 64,000 years ago and thus allows the older volcanic edifices to be recognized. Mount Etna from the south with the smoking peak in the upper left and a lateral crater in the centre
Mazama Ash had a minimum fallout area of 350,000 square miles (900,000 km 2), while ash from northwestern Washington's Glacier Peak volcano, known as Glacier Peak Ash, encompassed an area of more than 100,000 square miles (260,000 km 2). Mazama Ash is found at a higher layer than the Glacier Peak ash, estimated to have deposited over 13,000 ...
The earliest known recording of a volcanic eruption may be on a wall painting dated to about 7,000 BCE found at the Neolithic site at Çatal Höyük in Anatolia, Turkey. [ 15 ] : 203 This painting has been interpreted as a depiction of an erupting volcano, with a cluster of houses below shows a twin peaked volcano in eruption, with a town at ...
Erta Ale is the most regularly visited volcano in the Danakil Depression. [17] However, not much is known about the volcano, and the surrounding terrain is some of the most inhospitable on Earth, making travel difficult and dangerous. The Afar region also experiences intermittent ethnic violence due to unification struggles by the native Afar ...
Like all Hawaiian volcanoes, Mauna Loa was created as the Pacific tectonic plate moved over the Hawaii hotspot in the Earth's underlying mantle. [10] The Hawaii island volcanoes are the most recent evidence of this process that, over 70 million years, has created the 3,700 mi (6,000 km)-long Hawaiian–Emperor seamount chain. [11]
Volcanoes known to have Surtseyan activity include: Surtsey, Iceland. The volcano built itself up from depth and emerged above the Atlantic Ocean off the coast of Iceland in 1963. Initial hydrovolcanics were highly explosive, but as the volcano grew, rising lava interacted less with water and more with air, until finally Surtseyan activity ...
About 35 million years ago, a volcanic arc grew across this complex mosaic of old terranes. Volcanoes erupted to cover the older rocks with lava and ash. Large masses of molten rock invaded the older rocks from below. The volcanic arc is still active today, decorating the skyline with the cones of Mount Baker and Glacier Peak. [12]