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Active faults would be red lines and inactive black but are not shown usually as they tend to be smaller scale features that would add to map complexity. Mouse over shows feature names. The Kermadec–Tonga subduction zone is a convergent plate boundary that stretches from the North Island of New Zealand northward.
Macquarie Fault Zone >400: South Pacific Ocean: Fault (geology)#Strike-slip faults: Active: 1989 Maquarie Isl. (8.2), 2008 Macquarie Island earthquake (M7.1) Mae Chan Fault: 120: Thailand and Laos: Sinstral: Active: 2007 Laos (M6.3) Magallanes–Fagnano Fault: South America: Transform: Main Boundary Thrust: 2000: Himalaya: Thrust: Active ...
The Cascadia subduction zone runs from triple junctions at its north and south ends. To the north, just below Haida Gwaii, it intersects the Queen Charlotte Fault and the Explorer Ridge. To the south, just off Cape Mendocino in California, it intersects the San Andreas Fault and the Mendocino fracture zone at the Mendocino triple junction.
The zone includes most of the islands of Vanuatu, the Santa Cruz islands of the southern Solomon Islands, [4] and the Loyalty Islands.A number of ocean floor features are related to the zone, in particular the New Hebrides Trench (South New Hebridies Trench) [5] and the North New Hebrides Trench (Torres Trench) which is separated from the southern trench by the d'Entrecasteaux Ridge and the ...
The eastern islands of Indonesia (Sulawesi, the Lesser Sunda Islands (excluding Bali, Lombok, Sumbawa and Sangeang), Halmahera, the Banda Islands and the Sangihe Islands) are geologically associated with subduction of the Pacific plate or its related minor plates and, therefore, the eastern islands are often regarded as part of the Ring of Fire.
The andesite line is the most significant regional geologic distinction in the Pacific Ocean basin. It separates the mafic basaltic volcanic rocks of the Central Pacific Basin from the partially submerged continental areas of more felsic andesitic volcanic rock on its margins.
To the northwest of the triple junction the Pacific plate currently has 15 degrees of oblique convergence, passing under the North American plate along the Queen Charlotte transform fault zone. [3] The Explorer plate is a small chunk of the Juan de Fuca plate that broke away from the Juan de Fuca plate about 3.5 Ma and has moved much slower ...
The 1,600 kilometres (990 mi) [4] long Macquarie fault zone (also known as the Macquarie Ridge, its gazetted name since 2015, [7] the Macquarie Ridge complex or historically as the Macquarie Fault) [Notes 1] is a major right lateral-moving transform fault along the seafloor of the south Pacific Ocean which runs from New Zealand southwestward towards the Macquarie triple junction.