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Mariana Plate

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Title: Mariana Plate  
Author: World Heritage Encyclopedia
Language: English
Subject: Yangtze Plate, Earth and Its surface, Philippine Mobile Belt, Neodani Fault, Urasoko fault
Collection: Geology of the Pacific Ocean, Tectonic Plates
Publisher: World Heritage Encyclopedia

Mariana Plate

Map of the Mariana Plate (as "Mariannes") and its neighbouring plates (in French)
Cross section across the Mariana Plate

The Mariana Plate is a small tectonic plate located west of the Mariana Trench and forms the basement of the Mariana Islands. It is separated from the Philippine Sea Plate by a long divergent boundary with numerous transform fault offsets. The boundary between the Mariana and the Pacific Plate to the east is a subduction zone with the Pacific Plate subducting beneath the Mariana. The Mariana Trench forms the southeastern boundary and the Izu-Ogasawara Trench the northeastern boundary.[1]

The Mariana Islands earthquake of October 31, 2007 was a deep earthquake. It had a magnitude of 7.4 and occurred at 21.980° N. Lat. and 142.685° E. Long. at a depth of 261 km.[2]


  1. ^ Bird, P. (2003). "An updated digital model of plate boundaries". Geochemistry, Geophysics, Geosystems 4 (3): 1027.  
  2. ^ "M7.2 Northern Mariana Islands Earthquake of 31 October 2007". USGS. Retrieved 2009-01-08. 
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