Abstract
The 1964 Prince William Sound earthquake (March 28, 1964;M w =9.2) caused crustal deformation over an area of approximately 140,000 km2 in south central Alaska. In this study geodetic and geologic measurements of this surface deformation were inverted for the slip distribution on the 1964 rupture surface. Previous seismologic, geologic, and geodetic studies of this region were used to constrain the geometry of the fault surface. In the Kodiak Island region, 28 rectangular planes (50 by 50 km each) oriented ∼218°N, with a dip varying from 8o nearest the Aleutian trench to 9o below Kodiak Island, define the rupture surface. In the Prince William Sound region 39 planes with variable dimensions (∼40 by 50 km near the trench, ∼64 by 50 km inland) and orientation (218°N in the west and 270°N in the east) were used to approximate the complex faulting. Prior information was introduced to constrain offshore dip-slip values, the strike-slip component, and slip variation between adjacent planes. Our results suggest a variable dip-slip component with local slip maximums occurring near Montague Island (up to ∼30 m), further to the east near Kayak Island (up to ∼14 m), and trenchward of the northeast segment of Kodiak Island (up to ∼17m). A single fault plane dipping 30°NW, corresponding to the Patton Bay fault, with a slip value of ∼8 m modeled the localized but large uplift on Montague Island. The moment calculated on the basis of our geodetically derived slip model of 5.0×1029 dyne cm is 30% less than the seismic moment of 7.5×1029 dyne cm calculated from long-period surface waves (Kanamori, 1970) but is close to the seismic moment of 5.9×1029 dyne cm obtained byKikuchi andFukao (1987).
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References
Algermissen, S. T., Rinehart, W. A., Sherburne, R. W., andDillinger, W. Jr. (1969),Preshocks and Aftershocks of the Prince William Sound Earthquake of March 28, 1964, Coast and Geodetic Survey Publication 10-3, vol. II, parts B and C.
Barrientos, S. E., andWard, S. N. (1990),The 1960 Chile Earthquake: Inversion for Slip Distribution from Surface Deformation, Geophys. J. Int.103, 589–598.
Bomford, G.,Geodesy, 2nd Ed. (Oxford Press, 1962).
Brocher, T. M., Fuis, G. S., Fisher, M. A., Plafker, G., Moses, M. J., andTaber, J. J. (1994),Mapping the Megathrust beneath the Northern Gulf of Alaska Using Wide-angle Seismic Data, J. Geophys. Res.
Brown, L. D., Reilinger, R. E., Holdahl, S. R., andBalazs, E. I. (1977),Postseismic Crustal Uplift near Anchorage, Alaska, J. Geophys. Res.82, 3369–3378.
Christensen, D., andBeck, S. (1994),The 1964 Prince William Sound Earthquake: Rupture Process and Plate Segementation, Pure and Appl. Geophys.142, 29–53.
Cohen, S. C., Holdahl, S., Caprette, D., Hilla, S., Safford, R. W., andSchultz, D. (1994).Observations and Models of Subduction Zone Tectonics, Kenai Peninsula, Alaska (abstract), International Assoc. of Seism. and Phys. Earth Interior, 27th General Assembly, Wellington, New Zealand.
Davies, J. N., andHouse, L. (1979),Aleutian Subduction Zone Seismicity, Volcano-trench Separation, and their Relation to Great Thrust-type Earthquakes, J. Geophys. Res.84, 4583–4591.
DeMets, C., Gordon, R. G., Stein, S., andArgus, D. F. (1987),A Revised Estimate of Pacific-North American Motion and Implications for Western North America Plate Boundary Zone Tectonics, Geophys. Res. Lett.14, 911–914.
Harris, R. A., andSegall, P. (1987),1987: Detection of a Locked Zone at Depth on the Parkfield, California, Segment of the San Andreas Fault, J. Geophys. Res.92, 7945–7962 (1987).
Hastie, L. M., andSavage, J. C. (1970),A Dislocation Model for the 1964 Alaska Earthquake, Bull. Seismol. Soc. Am.60 (4), 1389–1392.
Holdahl, S. R. (1992),A Dynamic Vertical Reference System, Surveying and Land Information Systems52 (2), 92–103.
Holdahl, S., andSauber, J. (1992),Coseismic Slip and Post-seismic Deformation Associated with the 1964 Prince William Sound Earthquake (extended abstract), Wadati Conference on Great Subduction Earthquakes, Sept. 16–19, 83–89, Fairbanks, Alaska.
Johnson, J., andSatake, K. (1993),Slip Distribution of the 1964 Alaska Earthquake from Inversion of Tsunami Waveforms (abstract), EOS, Trans. Am. Geophys. Un. Supplement74, 95, Oct. 1993.
Kanamori, H. (1970),The Alaska Earthquake of 1964: Radiation of Long-period Surface Waves and Source Mechanism, J. Geophys. Res.75, 5011–5027.
Kikuchi, M., andFukao, Y. (1987),Inversion of Long-period P Waves from Great Earthquakes along Subduction Zones, Tectonophysics144, 231–247.
Lisowski, M., Savage, J. C., Svarc, J. L., andPrescott, W. H. (1993),Deformation across the Alaska-Aleutian Subduction Zone near Kodiak, Alaska (abstract), EOS, Trans. Am. Geophys. Un., Supplement, 191, Oct. 1993.
Ma, C., Sauber, J., Bell, L., Clark, T., Gordon, D., Himwich, W., andRyan, J. (1990),Measurement of Horizontal Motions in Alaska Using Very Long Baseline Interferometry, J. Geophys. Res.95, 21991–22011.
Mansinha, L., andSmylie, D. E. (1971),The Displacements Fields of Inclined Faults, Bull. Seismol. Soc. Am.66, 204–206.
Miyashita, K., andMatsu'ura, M. (1978),Inversion Analysis of Static Displacement Data Associated with the Alaska Earthquake of 1964, J. Phys. Earth.26, 333–349.
Moore, J. C., Diebold, J., Fisher, M., Davies, J., Sample, J., von Huene, R., Brocher, T., Page, B., Stone, P., Talwani, M., andEwing, J. (1989),Geological and Geophysical Context of the EDGE Deep Seismic Reflection Line: Gulf of Alaska (abstract), EOS Trans. AGU70, 1338.
Nishenko, S. P., andJacob, K. H. (1990),Seismic Potential of the Queen Charlotte-Alaska-Aleutian Seismic Zone, J. Geophys. Res.95, 2511–2532.
Page, R. (1968),Aftershocks and Microaftershocks of the Great Alaska Earthquake of 1964, Seismol. Soc. Am. Bull.58, 1131.
Page, R. A., Stephens, C. D., andLahr, J. C. (1989),Seismicity of the Wrangell and Aleutian Wadati-Benioff Zones and the North American Plate along the Trans-Alaska Crustal Transect, Chugach Mountains and Copper River Basin, Southern Alaska, J. Geophys. Res.94, 16059–16082.
Parkin, E. J. (1969),Horizontal Crustal Movements Determined from Surveys after the Alaskan Earthquake of 1964, the Prince William Sound, Alaska, Earthquake of 1964 and Aftershocks, U.S. Dept. of Comm. Coast and Geodetic Survey, vol. III.
Plafker, G. (1969),Tectonics of the March 27, 1964 Alaska Earthquake, U.S. Geol. Surv. Prof. Pap.543–1, 1–74.
Plafker, G. (1972),Alaskan Earthquake of 1964 and Chilean Earthquake of 1960: Implications for Arc Tectonics, J. Geophys. Res.77, 901–925.
Plafker, G., andRubin, M. (1978),Uplift History and Earthquake Recurrence as Deduced from Marine Terraces on Middleton Island, Alaska, U.S. Geol. Surv. Open File Rep.78–943, 687–721.
Prescott, W., andLisowski, M. (1977),Deformation at Middleton Island, Alaska, during the Decade after the Alaska Earthquake of 1964, Bull. Seismol. Soc. Am.67, 579–586.
Ruff, L., andKanamori, H. (1983),The Rupture Process and Asperity Distribution of Three Great Earthquakes from Long-period Diffracted P Waves, Phys. Earth Planet Inter.31, 202–230.
Savage, J. C., andPlafker, G. (1991),1990: Tide-gauge Measurements of Uplift along the South Coast of Alaska, J. Geophys. Res.96, 4325–4335.
Small, J. B., andWharton, L. C. (1969),Vertical Displacements Determined by Surveys after the Alaska Earthquake of March 1964, the Prince William Sound Earthquake of 1964 and Aftershocks, U.S. Dept. of Comm., Coast and Geodetic Survey, vol. III.
Snay, R. A. (1989),Enhancing the Geodetic Resolution of Fault Slip by Introducing Prior Information, Manuscripta Geodaetica14, 391–403.
Snay, R. A., Cline, M. W., andTimmerman, E. L. (1987),Project REDEAM: Models for Historical Horizontal Deformation, NOAA Technical Report NOS 125 NGS 42.
Stauder, W., andBollinger, G. A. (1966),The Focal Mechanism of the Alaska Earthquake of March 28, 1964, and of its Aftershock Sequence, J. Geophys. Res.71, 5283–5296.
Thatcher, W. (1990),Order and Diversity in the Modes of Circum-Pacific Earthquake Recurrence, J. Geophys. Res.95, 2609–2623.
Wood, F. J. (editor) (1966),The Prince William Sound, Alaska, Earthquake of 1964 and Aftershocks, U.S. Dept. of Comm., Coast and Geodetic Survey, 3 vols.
Wyss, M., andBrune, J. N. (1967),The Alaska Earthquake of 28 March 1964: A Complex Multiple Rupture, Bull. Seismol. Soc. Am.57, 1017–1023.
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Holdahl, S.R., Sauber, J. Coseismic slip in the 1964 Prince William Sound earthquake: A new geodetic inversion. PAGEOPH 142, 55–82 (1994). https://doi.org/10.1007/BF00875968
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DOI: https://doi.org/10.1007/BF00875968