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Volcanoes of Java and the Lesser Sunda Islands

8.5S 115.0E

September 29th, 2012 Category: Volcanoes

Indonesia – August 31st, 2012

The chain of islands on the right side of this image belong to the northern archipelago of the Lesser Sunda Islands, including Bali, Lombok, Sumbawa, Flores and Wetar. The archipelago is volcanic in origin, with a number of still active volcanoes, such as Mount Rinjani on Lombok. Others, however, such as Kelimutu, on Flores, are extinct.

Visible on the left side of the image, west of the Lesser Sunda Islands chain, is the island of Java. Formed mostly as the result of volcanic eruptions, Java is the 13th largest island in the world and the fifth largest island in Indonesia. A chain of volcanic mountains, easily visible in this image, forms an east-west spine along the island.

Mounts Sumbing and Gede and the Dieng Volcanic Complex, Indonesia – February 29th, 2012

7.2S 109.2E

February 29th, 2012 Category: Image of the day, Volcanoes

Indonesia - January 4th, 2012

This APM image shows several volcanoes on the island of Java, Indonesia. Visible near the bottom edge is Mount Sumbing or Gunung Sumbing, an active stratovolcano in Central Java, Indonesia, symmetrical with Sundoro. The only report of historical eruptions is from 1730. It has created a small phreatic crater at the summit.

Moving to the northwest of Mount Sumbing one comes to  Mount Gede, followed by the Dieng Volcanic Complex. The complex of volcanoes is located on the Dieng Plateau in the Central Java, Indonesia. The volcanic complex consists of two or more of stratovolcanoes, more than 20 small craters and Pleistocene-to-Holocene age volcanic cones.The Prahu stratovolcano was truncated by a large Pleistocene caldera and then filled by parasitic cones, lava domes and craters.

Semarang and Nearby Stratovolcanoes, Indonesia

6.9S 110.4E

February 21st, 2012 Category: Volcanoes

Indonesia - January 7th, 2012

This APM image shows the city of Semarang, located on the northern coast of Java, Indonesia. The capital of the province of Central Java, it has an area of 305.17 km². The northern part of the city is built on the coastal plain while the southern parts are on higher ground.

Visible to the south of the city are numerous volcanic peaks. Four stratovolcanoes can be observed in a curved line due south of Semarang: (from top to bottom) the deeply eroded Mount Ungaran, Mount Telomoyo, the dormant Mount Merbabu and the active Mount Merapi. In the lower left quadrant are two active stratovolanoces: Mount Sundoro (left) and Mount Sumbing (right).

Vegetation Index of Borneo, Belintung and Java, Indonesia

6.9S 107.6E

February 18th, 2012 Category: Vegetation Index

Indonesia - January 4th, 2012

This FAPAR image shows the vegetation index of Kalimantan (the Indonesian part of the island of Borneo, above), Belintung (also part of Indonesia, near the left edge), and Java (another island of Indonesia, below). The index range from good (green) to high (rusty red) on all three islands, with very few areas of low (yellow) activity.

Belintung is a medium sized island of about 3,000 square miles (7,800 km2), it consists of moderately rugged terrain with several hills. Java is almost entirely of volcanic origin; it contains thirty-eight mountains forming an east-west spine. More mountains and highlands help to split the interior into a series of relatively isolated regions suitable for wet-rice cultivation.

Islands of Indonesia from Java to Lombok

8.4S 116.4E

February 15th, 2012 Category: Volcanoes

Indonesia - February 9th, 2012

This orthorectified wide-swath ASAR image shows several islands in Indonesia: (from left to right) Java (mainly East Java), Bali and Lombok. Also visible at the top are Madura (left) and Saubi (right).

East Java is a province of Indonesia. It is located on the eastern part of the island of Java and includes neighboring Madura and islands to its east (the Kangean and Sapudi groups) and to its north (Bawean and the Masalembu Islands). The provincial capital is Surabaya, the second largest city in Indonesia and a major industrial center and port.

Many volcanic peaks can be seen on the islands. One of the most prominent is Mount Rinjani, on Lombok, visible near the right edge. This active volcano on Lombok rises to 3726 m, making it the second highest volcano in Indonesia. On the top of the volcano is a 6 km by 8.5 km caldera, partially filled by Segara Anak (Child of the Sea) lake. This lake is approximately 2000 metres above sea level and estimated at 200 metres deep.

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