Download or read book Numerical Studies of Tectonic and Landslide generated Tsunamis Caused by the 1964 Great Alaska Earthquake written by E. N. Suleimani and published by . This book was released on 2011 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of my thesis is on the complex source mechanism of tsunami waves generated by the Mw9.2 1964 Alaska earthquake, the largest instrumentally recorded earthquake in North America. The vertical seafloor displacements produced a trans-Pacific tectonic tsunami that caused loss of life and great damage in Alaska and the west coast of the United States and Canada. In addition to the major tectonic wave, about 20 local tsunamis were generated by submarine mass failures in a number of bays and fjords in south-central Alaska. These locally generated waves caused most of the damage and accounted for 76% of tsunami fatalities. I use numerical modeling to study tectonic and landslide tsunamis of the 1964 earthquake. The first part of the thesis presents numerical analysis of tsunami inundation at Seward and other locations in Resurrection Bay caused by the combined impact of landslide-generated waves and the tectonic tsunami. This study utilizes the recent geological findings of large-scale submarine slope failures in the bay during the 1964 earthquake and confirms the hypothesis that tsunami waves observed in Seward during and immediately after the earthquake resulted from multiple underwater landslides. The analysis of the simulated composite inundation area caused by the two different tsunami sources explains their relative contributions and demonstrates good agreement with observations. The second major topic is the source of the 1964 tectonic tsunami. The results of inundation modeling in Kodiak Island show that tsunami runup in the near field strongly depends on coseismic slip in the Kodiak asperity. I test the hypothesis that splay faults played a major role in tsunami generation and evaluate the extent of the Patton Bay fault using near-field tsunami observations. The new source function of the 1964 tsunami is presented, which includes the effects of the splay fault displacements and the component of the vertical deformation of the sea surface due to horizontal displacements on the megathrust. The results of numerical modeling studies included in this thesis complement the Alaska Tsunami Inundation Mapping Project. This activity provides emergency officials in coastal Alaska with tsunami hazard assessment tools and helps mitigate future tsunami risk.
Download or read book The Tsunami of the Alaskan Earthquake 1964 written by Basil Wrigley Wilson and published by . This book was released on 1968 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The purpose of this study is to evaluate the tsunami of Good Friday196k. The evaluation is directed to an engineering view of the causes,effects, and future protective measures. A secondary purpose is to evaluate the oceanographic and geophysical nature of tsunami generation.Based on the literature of earlier investigators and on field investigation by the authors, the study gives a picture of what occurred.Analyses by the authors also suggest an explanation of how it occurred.Started nearly two years after the event, the study had the advantage of collecting data from a great number of sources - sources that would not have been available much closer to the event. A disadvantage was that vital engineering evidence concerning structural damage was lost during cleanup and reconstruction.Nature of the earth dislocation is described and related to the generation, propagation, and dispersion of the main tsunami waves. Itis inferred that this earthquake (as perhaps many great earthquakes) was triggered by the lunisolar forces on the earth's crust at syzygy and by the moment-arm forces of local spring tide differentials. The complex tectonic movements may, for simplification, be imagined as a gigantic wave-paddle that pushed an initial wave 10 to 20 meters high along a front of 650 kilometers. Propagation of this enormous wave is followed-to Canada, Washington, Oregon, and California, to Hawaii, Russia, Japan,and New Zealand, even to Tierra del Fuego and Antarctica.Detailed studies of the main tsunami and local seismic sea waves are given for damaged areas in Alaska, especially those in Prince William Sound. Similar studies are presented for a'"as in Canada, Washington,Oregon and California. In addition to the wave analysis for each place,an engineering evaluation is presented for severely damaged areas.Included are marigrams of component waves and oscillations for manyplaces reached by the tsunami, based on a subjective analysis of tide gage records. These analyses relate the tsunami waves to local bay andshelf oscill ations, and to the local tides"--Page iii.
Download or read book Tsunami Inundation Maps for King Cove and Cold Bay Communities Alaska written by E. N. Suleimani and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Potential tsunami hazards for the Alaska Peninsula communities of King Cove and Cold Bay were evaluated by numerically modeling the extent of inundation from tsunami waves generated by hypothetical earthquake sources and taking into account historical observations. Worst-case hypothetical scenarios are defined by analyzing the tsunami dynamics related to various slip distributions along the Aleutian megathrust. Our results show that the worst-case scenarios for King Cove and Cold Bay are thrust earthquakes in the western Alaska Peninsula region, with magnitudes ranging from Mw 8.9 to Mw 9.3, which have their greatest slip at 10-20 km (6-12 mi) depth. We also consider Tohoku-type ruptures and an outer-rise rupture in the western Alaska Peninsula area. Results presented here are intended to provide guidance to local emergency management agencies in tsunami inundation assessment, evacuation planning, and public education to mitigate future tsunami hazards. this report we evaluate potential tsunami hazards for the southeastern Alaska community of Yakutat and numerically model the extent of inundation from tsunami waves generated by tectonic and landslide sources. We use numerical modeling of historic tsunami events at Yakutat, such as the tsunami triggered by the 1964 Great Alaska Earthquake, and the tsunami waves generated by the recent 2011 Tohoku earthquake, to verify the tsunami model. Potential hypothetical tsunami sources include variations of the extended 1964 rupture, megathrust earthquakes in the Prince William Sound and Alaska Peninsula regions, and earthquakes in the Yakatago-Yakutat area, including the historical September 10, 1899, earthquake. Local underwater landslide events in Monti Bay are also considered as possible tsunamigenic scenarios. Numerical modeling results, combined with historical observations in the region, are intended to provide guidance to local emergency management in tsunami hazard assessment, evacuation planning, and public education for the reduction of future tsunami risk.
Download or read book Blue Tights written by Rita Williams-Garcia and published by Starfire. This book was released on 1989 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Growing up in a city neighborhood, fifteen-year-old Joyce, unsure of herself and not quite comfortable with her maturing body, tries to find a place to belong and a way to express herself through dance.
Download or read book The Prince William Sound Alaska Earthquake of 1964 and Aftershocks Research studies seismology and marine geology pt A Engineering seismology pt B Seismology pt C Marine geology 2 v written by U.S. Coast and Geodetic Survey and published by . This book was released on 1966 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tsunami Inundation Maps for Yakutat Alaska written by E. N. Suleimani and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this report we evaluate potential tsunami hazards for the southeastern Alaska community of Yakutat and numerically model the extent of inundation from tsunami waves generated by tectonic and landslide sources. We use numerical modeling of historic tsunami events at Yakutat, such as the tsunami triggered by the 1964 Great Alaska Earthquake, and the tsunami waves generated by the recent 2011 Tohoku earthquake, to verify the tsunami model. Potential hypothetical tsunami sources include variations of the extended 1964 rupture, megathrust earthquakes in the Prince William Sound and Alaska Peninsula regions, and earthquakes in the Yakatago-Yakutat area, including the historical September 10, 1899, earthquake. Local underwater landslide events in Monti Bay are also considered as possible tsunamigenic scenarios. Numerical modeling results, combined with historical observations in the region, are intended to provide guidance to local emergency management in tsunami hazard assessment, evacuation planning, and public education for the reduction of future tsunami risk.
Download or read book Tectonics of the March 27 1964 Alaska Earthquake written by George Plafker and published by . This book was released on 1970 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Alaska Earthquake March 27 1964 Lessons and Conclusions written by Edwin Butt Eckel and published by . This book was released on 1970 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A summary of what was learned from a great earthquake about the bearing of geologic and hydrologic conditions on its effects, and about the scientific investigations needed to prepare for future earthquakes.
Download or read book Tsunamis Seiches and Landslide induced Water Waves written by James Robert Houston and published by . This book was released on 1979 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Great Alaska Earthquake of 1964 Hydrology pt A Text pt B A portfolio containing 7 charts 2 v written by National Research Council (U.S.). Committee on the Alaska Earthquake and published by . This book was released on 1968 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of an Alaska 1964 type Tsunami with Application to Boundary Bay in the Southern Strait of Georgia written by Isaac Fine and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A high-resolution, nested-grid tsunami model has been used to simulate the distribution of tsunami waves and wave-induced currents that will be generated in Boundary Bay in the event of a magnitude Mw 9.0, 1964-type Alaska earthquake. The model uses an advanced tsunami source distribution and high-resolution bathymetric and topographic data in Boundary Bay. We validated the model by comparing the simulated tsunami waves with those observed during the 1964 event at the Point Atkinson tide gauge. The modelled record closely fits the observed wave forms and amplitudes. According to the model, the tsunami in Boundary Bay will reach 0.45 m above the tidal level at the time the waves arrive, with the first wave being the highest. Tsunami waves along the Semiahmoo coast will be up to 0.35 m. The distribution of tsunami wave amplitudes within Boundary Bay will be non-uniform, with highest waves occurring toward the head of the bay. Moderate strength currents will be induced at the entrance to Drayton Harbor (up to 1.5 m/s) and at the mouth of Campbell River (up to 0.5 m/s). At other locations, wave-induced current will not exceed 0.3 m/s. Even allowing for a 50% safety factor, the risk of flooding in Boundary Bay by an Alaska 1964-type tsunami, is considered to be low"--Abstract, page iv.
Download or read book The Great Alaska Earthquake of 1964 Hydrology pt A Text pt B A portfolio containing 7 charts written by National Research Council (U.S.). Committee on the Alaska Earthquake and published by . This book was released on 1968 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of the Alaska Earthquake of March 27 1964 on Shore Processes and Beach Morphology written by Kirk W. Stanley and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Great Alaska Earthquake of 1964 Human ecology written by National Research Council (U.S.). Committee on the Alaska Earthquake and published by . This book was released on 1968 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of the March 1964 Alaska Earthquake on the Hydrology of South central Alaska written by Roger M. Waller and published by . This book was released on 1966 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water-level fluctuations, long-term changes, and temporary effects caused by response of the ground water to seismic waves.
Download or read book Tsunami Inundation Maps of the Elfin Cove Gustavus and Hoonah Alaska written by E. N. Suleimani and published by . This book was released on 2015 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this report, we evaluate potential tsunami hazards for southeastern Alaska communities of Elfin Cove, Gustavus, and Hoonah and numerically model the extent of inundation from tsunami waves generated by tectonic and landslide sources. We perform numerical modeling of historic tsunami events, such as the tsunami triggered by the 1964 Great Alaska Earthquake, and the tsunami waves generated by the recent 2011 Tohoku and 2012 Queen Charlotte earthquakes. Hypothetical tsunami scenarios include variations of the extended 1964 rupture, megathrust earthquakes in the Prince William Sound and Alaska Peninsula regions, and a Cascadia megathrust earthquake. Local underwater landslide events in Taylor Bay and Port Frederick, and a rockslide in Tidal Inlet are also considered as possible tsunamigenic scenarios. Numerical modeling results, combined with historical observations in the region, are intended to provide guidance to local emergency management in tsunami hazard assessment, evacuation planning, and public education for the reduction of future tsunami risk.
Download or read book The Great Alaska Earthquake of 1964 Seismology and geodesy written by National Research Council (U.S.). Committee on the Alaska Earthquake and published by . This book was released on 1968 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt:
