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Vegetation Around Mauna Loa Volcano on Hawaii, USA – January 4th, 2011

21.1N 157.2W

January 4th, 2011 Category: Image of the day, Volcanoes

USA - December 26th, 2010

The island of Hawaii occupies virtually all of this thumbnail image, while several other of the Hawaiian Islands can be observed in the full version.

The island shows terrain of mixed colors, mainly shades of green and brown. The green areas indicate forests and vegetation, while the brown areas are volcanic. The dark brown area in the center of the island is the Mauna Loa volcano. The darkest brown areas are mostly lava flows on the volcano’s relatively shallow slopes.

Contrasting Slopes of Mauna Loa and Mauna Kea, Hawaii, USA

19.8N 155.4W

July 22nd, 2010 Category: Volcanoes

USA - June 27th, 2010

USA - June 27th, 2010

This orthorectified image shows much of the island of Hawaii, USA. The island is formed by five volcanoes, two of which are prominent here: Mauna Loa and Mauna Kea.

The former occupies the lower half of the image; its caldera is clearly visible in the lower right quadrant. The latter can be seen in the upper right quadrant. Its sides appear rougher than those of Mauna Loa, whose slopes are relatively shallow.

Mauna Loa and Mauna Kea Ringed by Clouds on Hawaii, USA

21.1N 157.2W

July 13th, 2010 Category: Volcanoes

USA - June 29th, 2010

USA - June 29th, 2010

Clouds surround the most of the base of Mauna Loa, one of five volcanoes that form the Island of Hawaii in the aponymous USA state in the Pacific Ocean. The relatively shallow slopes, created by fluid silica-poor lava eruptions, appear dark chocolate brown with some grooves.

Another volcano, Mauna Kea, is visible just north of Mauna Loa. It is also surrounded by clouds on most sides, except for the part where it “connects” to Mauna Loa. It can be distinguished from its neighbor by its slightly lighter and more golden brown color, and its rougher-looking surface.

Mauna Loa Volcano and Ka Lae, Hawaii – February 4th, 2010

21.1N 157.2W

February 4th, 2010 Category: Image of the day, Volcanoes

USA - December 20th, 2009

USA - December 20th, 2009

The full version of this orthorectified image stretches from the northernmost point of the island of Hawaii, across the volcano of Mauna Loa, to Ka Lae (or South Point), the southernmost point on the island.

As one may suppose from the area occupied by the volcano in the full image, it is the largest volcano on earth. This active shield volcano has a volume of about 18,000 cubic miles (75,000 kmĀ³), although it is not the highest peak on the island.

Ka Lae, also known as South Point, is the southernmost point on the Big Island of Hawaii as well as the southernmost point of the 50 United States. A confluence of ocean currents just offshore makes this spot one of Hawaii’s most popular fishing spots, although dangerous for swimming. The confluence of currents also means the area is prone to accumulation of marine debris.

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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