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Plume from Kilauea Volcano, Hawaii

September 10th, 2008 Category: Volcanoes

September 9th, 2008 - Kilauea, HawaiiHawaii

September 9th, 2008 - Kilauea, Hawaii

Kīlauea (IPA: [kiːlauea]) is an active volcano in the Hawaiian Islands, one of five shield volcanoes that together form the Island of Hawaiʻi.

In Hawaiian, the word kīlauea means “spewing” or “much spreading”, in reference to the mountain’s frequent outpouring of lava. Issuing lava continuously since January 1983, Kīlauea is currently the most active volcano on the planet, an invaluable resource for volcanologists, and also the planet’s most visited active volcano.

Kīlauea is the most recent of a series of volcanoes that have created the Hawaiʻian Archipelago, as the Pacific Plate has moved and is moving over the Hawaiʻi hotspot (see Lōʻihi Seamount).

Kīlauea is located on Hawaiʻi Island, Hawaiʻi, in the United States. It lies against the southeast flank of much larger Mauna Loa volcano. Mauna Loa’s massive size and elevation (13,677 feet or 4,169 m) is a stark contrast to Kīlauea, which rises only 4,091 feet (1,247 m) above sea level, and thus from the summit caldera appears as a broad shelf of uplands well beneath the long profile of occasionally snow-capped Mauna Loa, 15 miles (24 km) distant.

Kīlauea is a very low, flat shield volcano – vastly different in profile from the high, sharply sloping peaks of stratovolcanoes like Mt. Fuji, Mount Hood, and Mount St. Helens.

source Wikipedia

Five Volcanoes of Hawaii’s Big Island

21.1N 157.2W

February 16th, 2010 Category: Volcanoes

USA - January 25th, 2010

USA - January 25th, 2010

The Island of Hawaii, also known as the “Big Island” in order to distinguish it from the state, is built from five separate shield volcanoes that erupted somewhat sequentially, one overlapping the other.

These are (from oldest to youngest): Kohala (extinct), Mauna Kea (dormant), Hualālai (active but not currently erupting), Mauna Loa (active), and Kīlauea (active: an eruption began in 1983 and as of 2010 has grown in size).

All five can be observed upon opening the full version of this orthorectified image: (clockwise from top) Kohala, Mauna Kea, Kilauea and Hualalai, with Mauna Loa in the center.

Because Mauna Loa and Kīlauea are active volcanoes, the “Big Island” of Hawaiʻi is still growing bigger. Between January 1983 and September 2002, lava flows added 543 acres (220 ha) to the island.

Cape Kumukahi and Hilo, in Hawaii, USA

19.7N 155W

December 28th, 2009 Category: Snapshots

USA - December 18th, 2009

USA - December 18th, 2009

This orthorectified image of eastern Hawaii includes Cape Kumukahi, the easternmost point of the island chain. The cape lies at the end of the east rift zone of the slopes of Kilauea and has been threatened several times by eruptions.

Moving westward along the coast from the cape, the city of Hilo can be seen along the shores of Hilo Bay. It is the largest settlement on the island of Hawaii, and the second largest settlement in the state. The population was 40,759 at the 2000 census.

Hualālai and Mauna Loa Volcanoes, Hawaii USA

19.6N 155.8W

August 10th, 2009 Category: Volcanoes

Hawaii, USA - July 11th, 2009

Hawaii, USA - July 11th, 2009

The Island of Hawaii is built from five separate shield volcanoes that erupted somewhat sequentially, one overlapping the other. From oldest to youngest these are: Kohala, Mauna Kea, Hualālai, Mauna Loa and Kīlauea.

Two of these can be observed in this orthorectified image: Mauna Loa, the prominent volcano visible towards the center of the island, and Hualālai, near the top by the island’s coast.

Hualālai is a dormant shield volcano on the island of Hawaiʻi in the Hawaiian Islands. Its peak is 8,271 ft (2,521 m) above sea level. It lies roughly due west of the saddle between the much higher volcanoes Mauna Kea and Mauna Loa.

Much of the southern slope (above the town of Kailua-Kona) consists of lava flows covered by a layer of volcanic ash from 10 cm (a few inches) to a meter (3 ft) thick.

Hualālai is built from a well-defined rift zone that trends approximately N50°W across its summit and a less well-defined rift zone that trends northward from a point 3 mi east of the summit. Over 100 cinder and spatter cones are arranged along the rift zones. There is no summit caldera, just a collapse crater (about 0.3 mile across) at the top of a small lava shield.