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Pacific Rim (Ring of Fire)

Terragen Landscape posted on Aug 25, 2015
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Description


Pacific Rim (Ring of Fire) The Ring of Fire is an area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur. In a 40,000 km (25,000 mi) horseshoe shape, it is associated with a nearly continuous series of oceanic trenches, volcanic arcs, and volcanic belts and/or plate movements. It has 452 volcanoes and is home to over 75% of the world's active and dormant volcanoes. The Ring of Fire is sometimes called the circum-Pacific belt. About 90% of the world's earthquakes and 81% of the world's largest earthquakes occur along the Ring of Fire. The next most seismically active region (5–6% of earthquakes and 17% of the world's largest earthquakes) is the Alpide belt, which extends from Java to the northern Atlantic Ocean via the Himalayas and southern Europe. All but 3 of the world's 25 largest volcanic eruptions of the last 11,700 years occurred at volcanoes in the Ring of Fire. The Ring of Fire is a direct result of plate tectonics and the movement and collisions of lithospheric plates. The eastern section of the ring is the result of the Nazca Plate and the Cocos Plate being subducted beneath the westward moving South American Plate. The Cocos Plate is being subducted beneath the Caribbean Plate, in Central America. A portion of the Pacific Plate along with the small Juan de Fuca Plate are being subducted beneath the North American Plate. Along the northern portion, the northwestward-moving Pacific plate is being subducted beneath the Aleutian Islands arc. Farther west, the Pacific plate is being subducted along the Kamchatka Peninsula arcs on south past Japan. The southern portion is more complex, with a number of smaller tectonic plates in collision with the Pacific plate from the Mariana Islands, the Philippines, Bougainville, Tonga, and New Zealand; this portion excludes Australia, since it lies in the center of its tectonic plate. Indonesia lies between the Ring of Fire along the northeastern islands adjacent to and including New Guinea and the Alpide belt along the south and west from Sumatra, Java, Bali, Flores, and Timor. The famous and very active San Andreas Fault zone of California is a transform fault which offsets a portion of the East Pacific Rise under southwestern United States and Mexico. The motion of the fault generates numerous small earthquakes, at multiple times a day, most of which are too small to be felt. The active Queen Charlotte Fault on the west coast of the Haida Gwaii, British Columbia, Canada, has generated three large earthquakes during the 20th century: a magnitude 7 event in 1929; a magnitude 8.1 in 1949 (Canada's largest recorded earthquake); and a magnitude 7.4 in 1970.

Comments (18)


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MagikUnicorn

5:04PM | Tue, 25 August 2015

La ceinture de feu du Pacifique

La ceinture de feu du Pacifique est un alignement de volcans qui borde l'océan Pacifique sur la majorité de son pourtour, soit environ 40 000 kilomètres.

Cet alignement de volcans coïncide avec un ensemble de limites de plaques tectoniques et de failles. Ces limites sont également marquées par les principales fosses océaniques de la planète.

La ceinture de feu compte 452 volcans, soit 75 % des volcans émergés de la planète, qu'ils soient actifs ou éteints. Cette concentration s'explique par la subduction de plaques océaniques (principalement les plaques Nazca, Cocos, Juan de Fuca et Pacifique) sous des plaques moins denses (principalement sud-américaine, caraïbe, nord-américaine, d'Okhotsk, philippine et australienne). Le volcanisme de subduction donne le plus souvent naissance à des volcans gris.

Le jeu de ces plaques tectoniques est aussi à l'origine de fréquents séismes (90 % des tremblements de terre et 80 % des plus grands tremblements).

Les volcans de la ceinture de feu du Pacifique sont donc principalement des volcans de subduction, qui s'organisent en arcs volcaniques continentaux (chaînes ou cordillères volcaniques) pour les volcans de marge continentale (Amérique), ou en arcs volcaniques insulaires.

La ceinture de feu du Pacifique fait partie des trois zones d'activité sismique les plus importantes de la planète, avec la dorsale médio-atlantique et la ceinture alpine.

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eekdog

5:32PM | Tue, 25 August 2015

great bryce scenery!!

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QuietRiot

6:15PM | Tue, 25 August 2015

You should do more TG images. This one is really good.
Believe it or not, Kansas is becoming a hot spot for earthquakes caused by the oil companies fracking.

MagikUnicorn

6:37PM | Tue, 25 August 2015

Yes even Oklahoma has earthquakes because of fracking !!!
One day USA will be split in half ! (Mississippi fracture) and New Madrid fault !
Everyone come to CANADA U'r WELCOME ;-) (JOKING) lol

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GrandmaT Online Now!

7:40PM | Tue, 25 August 2015

Magnificent work!

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Mulltipass

9:10PM | Tue, 25 August 2015

First of all this is an Awesome Scene!!!
AND...Excellent Info!!!

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Jollyself

9:58PM | Tue, 25 August 2015

beautiful RJ :)

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Richardphotos

10:07PM | Tue, 25 August 2015

outstanding terrain. I have been 4 times in the area. luckily there no earthquakes then

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renecyberdoc

12:45AM | Wed, 26 August 2015

burn by wild desire .............

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UteBigSmile

1:37AM | Wed, 26 August 2015

Excellent looking piece of artwork!

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Mondwin

5:07AM | Wed, 26 August 2015

Superbe image mon Amì!!!Bravissimo!V:DDD.Regarder Whylma

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jendellas

5:12AM | Wed, 26 August 2015

Thanks for the info on this wonderful image. x

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mininessie

5:37AM | Wed, 26 August 2015

beautiful!

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flavia49

12:21PM | Wed, 26 August 2015

wonderful

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Glendaw

1:34PM | Wed, 26 August 2015

Leave a comment
Very majestic and beautiful !
Amazing work on this scene Magik.
Thanks for sharing the info.

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jayfar

1:55PM | Wed, 26 August 2015

This is a really nice image Magik.

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Star4mation

2:03PM | Wed, 26 August 2015

Nicely done Magik :)

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DennisReed

11:52AM | Thu, 27 August 2015

excellent

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0rest4wicked

7:02AM | Sat, 29 August 2015

Have lived on the Rim of Fire for many years. All it's tectonics have created such a beautiful landscape!

Great image and narration!


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