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Plate Structure and the Origin of Double Seismic Zones. ACTA ACUST UNITED AC 2013. [DOI: 10.1029/gm096p0223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Kirby S, Engdahl RE, Denlinger R. Intermediate-Depth Intraslab Earthquakes and Arc Volcanism as Physical Expressions of Crustal and Uppermost Mantle Metamorphism in Subducting Slabs. SUBDUCTION TOP TO BOTTOM 2013. [DOI: 10.1029/gm096p0195] [Citation(s) in RCA: 133] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Abers GA, Roecker SW. Deep structure of an arc-continent collision: Earthquake relocation and inversion for upper mantle P and S wave velocities beneath Papua New Guinea. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91jb00145] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yang X, Fischer KM, Abers GA. Seismic anisotropy beneath the Shumagin Islands segment of the Aleutian-Alaska subduction zone. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95jb01425] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Obara K, Sato H. Existence of anSwave reflector near the upper plane of the double seismic zone beneath the Southern Kanto District, Japan. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jb093ib12p15037] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ekström G, Engdahl ER. Earthquake source parameters and stress distribution in the Adak Island region of the central Aleutian Islands, Alaska. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jb094ib11p15499] [Citation(s) in RCA: 141] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Frohlich C. Kiyoo Wadati and early research on deep focus earthquakes: Introduction to Special Section on Deep and Intermediate Focus Earthquakes. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jb092ib13p13777] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gubbins D, Snieder R. Dispersion ofPwaves in subducted lithosphere: Evidence for an eclogite layer. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/90jb02741] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Engdahl ER, Blllington S, Kisslinger C. Teleseismically recorded seismicity before and after the May 7, 1986, Andreanof Islands, Alaska, earthquake. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jb094ib11p15481] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fischer KM, Jordan TH, Creager KC. Seismic constraints on the morphology of deep slabs. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jb093ib05p04773] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhao D, Christensen D, Pulpan H. Tomographic imaging of the Alaska subduction zone. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95jb00046] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Anderson DL. Thermally induced phase changes, lateral heterogeneity of the mantle, continental roots, and deep slab anomalies. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/jb092ib13p13968] [Citation(s) in RCA: 142] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jadamec MA, Billen MI. The role of rheology and slab shape on rapid mantle flow: Three-dimensional numerical models of the Alaska slab edge. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jb008563] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
For more than 50 years, observations of earthquakes to depths of 100 to 650 kilometers inside Earth have been enigmatic: at these depths, rocks are expected to deform by ductile flow rather than brittle fracturing or frictional sliding on fault surfaces. Laboratory experiments and detailed calculations of the pressures and temperatures in seismically active subduction zones indicate that this deep-focus seismicity could originate from dehydration and high-pressure structural instabilities occurring in the hydrated part of the lithosphere that sinks into the upper mantle. Thus, seismologists may be mapping the recirculation of water from the oceans back into the deep interior of our planet.
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Zhao D, Hasegawa A, Kanamori H. Deep structure of Japan subduction zone as derived from local, regional, and teleseismic events. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/94jb01149] [Citation(s) in RCA: 416] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Singer BS, Jicha BR, Leeman WP, Rogers NW, Thirlwall MF, Ryan J, Nicolaysen KE. Along-strike trace element and isotopic variation in Aleutian Island arc basalt: Subduction melts sediments and dehydrates serpentine. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jb004897] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Castle JC, Creager KC, Winchester JP, van der Hilst RD. Shear wave speeds at the base of the mantle. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jb900193] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Stern T, Molnar P, Okaya D, Eberhart-Phillips D. TeleseismicPwave delays and modes of shortening the mantle lithosphere beneath South Island, New Zealand. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/2000jb900166] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Fliedner MM, Klemperer SL. Structure of an island-arc: Wide-angle seismic studies in the eastern Aleutian Islands, Alaska. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/98jb01499] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bijwaard H, Spakman W, Engdahl ER. Closing the gap between regional and global travel time tomography. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jb02467] [Citation(s) in RCA: 824] [Impact Index Per Article: 31.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Widiyantoro S, van der Hilst R. Structure and Evolution of Lithospheric Slab Beneath the Sunda Arc, Indonesia. Science 1996. [DOI: 10.1126/science.271.5255.1566] [Citation(s) in RCA: 181] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Sri Widiyantoro
- Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia
| | - Rob van der Hilst
- Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia
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Iidaka T, Mizoue M, Suyehiro K. Seismic velocity structure of the subducting Pacific Plate in the Izu-Bonin Region. ACTA ACUST UNITED AC 1992. [DOI: 10.1029/92jb01336] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kirby SH, Durham WB, Stern LA. Mantle Phase Changes and Deep-Earthquake Faulting in Subducting Lithosphere. Science 1991; 252:216-25. [PMID: 17769266 DOI: 10.1126/science.252.5003.216] [Citation(s) in RCA: 386] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Inclined zones of earthquakes are the primary expression of lithosphere subduction. A distinct deep population of subduction-zone earthquakes occurs at depths of 350 to 690 kilometers. At those depths ordinary brittle fracture and frictional sliding, the faulting processes of shallow earthquakes, are not expected. A fresh understanding of these deep earthquakes comes from developments in several areas of experimental and theoretical geophysics, including the discovery and characterization of transformational faulting, a shear instability connected with localized phase transformations under nonhydrostatic stress. These developments support the hypothesis that deep earthquakes represent transformational faulting in a wedge of olivine-rich peridotite that is likely to persist metastably in coldest plate interiors to depths as great as 690 km. Predictions based on this deep structure of mantle phase changes are consistent with the global depth distribution of deep earthquakes, the maximum depths of earthquakes in individual subductions zones, and key source characteristics of deep events.
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Gaherty JB, Lay T, Vidale JE. Investigation of deep slab structure using long-periodSwaves. ACTA ACUST UNITED AC 1991. [DOI: 10.1029/91jb01483] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Creager KC, Boyd TM. The geometry of Aleutian subduction: Three-dimensional kinematic flow model. ACTA ACUST UNITED AC 1991. [DOI: 10.1029/90jb01918] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Boyd TM, Creager KC. The geometry of Aleutian subduction: Three-dimensional seismic imaging. ACTA ACUST UNITED AC 1991. [DOI: 10.1029/90jb01919] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Bock G, Eguchi T, Fujinawa Y. Pwave velocity anomalies between the Tonga subducting slab and the overlying mantle beneath the Lau Basin. ACTA ACUST UNITED AC 1991. [DOI: 10.1029/91jb01728] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhou HW, Clayton RW. PandSwave travel time inversions for subducting slab under the island arcs of the northwest Pacific. ACTA ACUST UNITED AC 1990. [DOI: 10.1029/jb095ib05p06829] [Citation(s) in RCA: 126] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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