1-20 OF 935 RESULTS FOR

megathrust earthquakes

Results shown limited to content with bounding coordinates.
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
×Close Modal
Sort by
Journal Article
Journal: GSA Bulletin
Published: 01 July 2005
GSA Bulletin (2005) 117 (7-8): 996-1008.
...Andrea D. Hawkes; David B. Scott; Jere H. Lipps; Rod Combellick Abstract Megathrust earthquakes in western North America may be preceded by a precursor phase several years prior to megathrust, induced earthquakes. For example, on 27 March 1964, a 9.2 magnitude (on the Richter scale) earthquake...
FIGURES | View All (18)
Journal Article
Published: 18 June 2019
Bulletin of the Seismological Society of America (2019) 109 (4): 1312-1330.
...Loïc Viens; Marine A. Denolle Abstract Long‐period ground motions from large ( M w ≥ 7.0 ) subduction‐zone earthquakes are a real threat for large‐scale human‐made structures. The Nankai subduction zone, Japan, is expected to host a major megathrust earthquake in the near future and has therefore...
FIGURES | View All (11)
Journal Article
Journal: Geology
Published: 04 January 2019
Geology (2019) 47 (2): 127-130.
...Maarten Van Daele; Cristian Araya-Cornejo; Thomas Pille; Kris Vanneste; Jasper Moernaut; Sabine Schmidt; Philipp Kempf; Inka Meyer; Marco Cisternas Abstract Subduction zone seismicity arises from megathrust, crustal, and intraslab earthquakes, and understanding the recurrence patterns of each type...
FIGURES | View All (4)
Journal Article
Published: 30 October 2018
Bulletin of the Seismological Society of America (2018) 108 (6): 3313-3335.
... in the context of a megathrust subduction‐zone earthquake, we develop a new simulation framework for spatiotemporal seismic hazard and risk assessment of a megathrust earthquake and its aftershocks along the plate boundary and in the onshore continental crust. The Tohoku region in northeast Japan is considered...
FIGURES | View All (19)
Journal Article
Journal: Geosphere
Published: 06 July 2018
Geosphere (2018) 14 (4): 1468-1500.
...Susan L. Bilek; Thorne Lay Abstract Subduction zone megathrust faults host Earth’s largest earthquakes, along with multitudes of smaller events that contribute to plate convergence. An understanding of the faulting behavior of megathrusts is central to seismic and tsunami hazard assessment around...
FIGURES | View All (19)
Journal Article
Published: 19 October 2016
Seismological Research Letters (2016) 87 (6): 1265-1273.
... discontinuous grids and by adapting to multigraphics processing units technique. Then, we simulate long‐period ground motion of many scenarios of a hypothetical megathrust earthquake in the Nankai trough. We use the characterized source models based on the “recipe” in the simulation. Finally, we apply...
FIGURES | View All (6)
Journal Article
Published: 26 July 2016
Bulletin of the Seismological Society of America (2016) 106 (5): 2275-2289.
...Shiqing Xu; Eiichi Fukuyama; Han Yue; Jean‐Paul Ampuero Abstract Following the 2010 Maule and 2011 Tohoku earthquakes, many studies have examined the relation between megathrust earthquakes and subsequent deformation. Here, we apply simple models based on mode II shear cracks, including...
FIGURES | View All (17)
Journal Article
Journal: Geosphere
Published: 01 April 2015
Geosphere (2015) 11 (2): 236-265.
...-magnitude earthquakes are most prone to nucleate at well-sedimented SZs. For example, despite the 7500 km shorter global length of thick-sediment trenches, they account for ∼53% of instrumental era IPTs ≥Mw8.0, ∼75% ≥Mw8.5, and 100% ≥Mw9.1. No megathrusts >Mw9.0 ruptured at thin-sediment trenches...
FIGURES | View All (16)
Journal Article
Journal: Geology
Published: 01 July 2009
Geology (2009) 37 (7): 659-662.
... to the forearc mantle below the crust of the upper plate. Stable sliding conditions have been shown to prevail there, particularly along several circum-Pacific margins that underwent great megathrust earthquakes (M w > 8.5) during the twentieth century. Based on geophysical investigation, we show...
FIGURES | View All (4)
Journal Article
Journal: Geology
Published: 01 June 2007
Geology (2007) 35 (6): 539-542.
... decompression of the volcano magma systems leads to such eruptions. Numerical modeling reveals that other megathrust earthquakes induced volumetric expansion in the areas where vol canoes erupted. We suggest that abrupt decompression of a magma reservoir and/or its feeding system initiates processes...
FIGURES | View All (4)
Journal Article
Journal: Geology
Published: 01 June 2006
Geology (2006) 34 (6): 485-488.
.... A model of back-thrust fault slip or bending moment folding during plate-boundary slip, such as during the 2004 M9.2 megathrust earthquake, can explain the position of these features on the seaward fold limb of a seaward-dipping thrust. We infer that in major Sumatran (and other similar settings) plate...
FIGURES
Journal Article
Published: 01 June 2002
Bulletin of the Seismological Society of America (2002) 92 (5): 1923-1932.
... ( M ) 8.0, 8.5, and 9.0 megathrust earthquakes along the Cascadia subduction zone for both rock-and soil-site conditions. The stochastic finite-fault model was validated against the 1985 M 8.0 Michoacan, Mexico, and the 1985 M 8.0 Valpariso, Chile, earthquakes. These two subduction zone megathrust...
FIGURES | View All (7)
Journal Article
Published: 01 February 2011
Bulletin of the Seismological Society of America (2011) 101 (1): 313-326.
...Kelly Wiseman; Roland Bürgmann Abstract The Bengkulu M w 8.4 earthquake on 12 September 2007, close in time and space to the 2004 M w 9.2 Sumatra–Andaman and 2005 M w 8.7 Nias megathrust events, suggests that it could be a triggered earthquake. It was located in the southern portion of the historic...
FIGURES | View All (11)
Journal Article
Journal: Geology
Published: 01 August 2015
Geology (2015) 43 (8): 671-674.
.... This megathrust earthquake was preceded by more than 2 weeks of foreshock activity migrating ∼3.5 km/day toward the mainshock hypocenter. This foreshock sequence was triggered by an M w 6.7 earthquake on a reverse fault in the upper plate that strikes at a high angle to the trench, similar to well-documented...
FIGURES
Journal Article
Published: 01 August 2003
Bulletin of the Seismological Society of America (2003) 93 (4): 1703-1729.
..., there is a significant hazard from megathrust earthquakes along the subduction interface and from large events within the subducting slab. These hazards are in addition to the hazard from shallow earthquakes in the overlying crust. We have compiled a response spectra database from thousands of strong-motion recordings...
FIGURES | View All (21)
Journal Article
Published: 27 February 2018
Bulletin of the Seismological Society of America (2018) 108 (2): 801-814.
... a temporal evolution of their frequency content in the earthquake sequence associated with the 2014 Iquique M w 8.1 megathrust earthquake. Surprisingly, the change does not occur with the mainshock but is associated with an 8 month slow slip preceding the megathrust. 14 February 2017...
FIGURES | View All (9)
Journal Article
Published: 10 April 2015
Canadian Journal of Earth Sciences (2015) 52 (6): 405-430.
..., megathrust earthquake shaking is the most likely trigger for both the initial slumping and subsequent turbidity currents, with sediments sourced exclusively from the exposed slump face of the frontal ridge. Planktonic foraminifera picked from the resedimented diamict of the underlying main slump have...
FIGURES
Image
INSTRUMENTAL ERA <b>MEGATHRUST</b> <b>EARTHQUAKES</b> THAT RUPTURED AT THIN-SEDIMENT (&amp;lt...
in > Geosphere
Published: 01 April 2015
TABLE 1. INSTRUMENTAL ERA MEGATHRUST EARTHQUAKES THAT RUPTURED AT THIN-SEDIMENT (<1.0 KM) TRENCH SECTORS
Image
INSTRUMENTAL ERA <b>MEGATHRUST</b> <b>EARTHQUAKES</b> THAT RUPTURED AT THIN-SEDIMENT (&amp;lt...
in > Geosphere
Published: 01 April 2015
TABLE 1. INSTRUMENTAL ERA MEGATHRUST EARTHQUAKES THAT RUPTURED AT THIN-SEDIMENT (<1.0 KM) TRENCH SECTORS
Image
INSTRUMENTAL ERA <b>MEGATHRUST</b> <b>EARTHQUAKES</b> THAT RUPTURED AT THIN-SEDIMENT (&amp;lt...
in > Geosphere
Published: 01 April 2015
TABLE 1. INSTRUMENTAL ERA MEGATHRUST EARTHQUAKES THAT RUPTURED AT THIN-SEDIMENT (<1.0 KM) TRENCH SECTORS