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Shallow Slopes of Mauna Loa, Hawaii, USA

21.1N 157.2W

January 17th, 2010 Category: Volcanoes

USA - January 2nd, 2010

USA - January 2nd, 2010

The broad slopes of Mauna Loa occupy most of the land visible in this image of the island of Hawaii, USA. Mauna Loa is the largest volcano in the world by volume. The volcano is still active today. Its shallow slopes are the result of silica-poor, thus very fluid, lava eruptions.

The volcano has probably been erupting for at least 700,000 years and may have emerged above sea level about 400,000 years ago, although the oldest-known dated rocks do not extend beyond 200,000 years. Its magma comes from the Hawaii hotspot, which has been responsible for the creation of the Hawaiian island chain for tens of millions of years.

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