Abstract
The 9 March 1957 Aleutian earthquake has been estimated as the third largest earthquake this century and has the longest aftershock zone of any earthquake ever recorded—1200 km. However, due to a lack of high-quality seismic data, the actual source parameters for this earthquake have been poorly determined. We have examined all the available waveform data to determine the seismic moment, rupture area, and slip distribution. These data include body, surface and tsunami waves. Using body waves, we have estimated the duration of significant moment release as 4 min. From surface wave analysis, we have determined that significant moment release occurred only in the western half of the aftershock zone and that the best estimate for the seismic moment is 50–100×1020 Nm. Using the tsunami waveforms, we estimated the source area of the 1957 tsunami by backward propagation. The tsunami source area is smaller than the aftershock zone and is about 850 km long. This does not include the Unalaska Island area in the eastern end of the aftershock zone, making this area a possible seismic gap and a possible site of a future large or great earthquake. We also inverted the tsunami waveforms for the slip distribution. Slip on the 1957 rupture zone was highest in the western half near the epicenter. Little slip occurred in the eastern half. The moment is estimated as 88×1020 Nm, orM w =8.6, making it the seventh largest earthquake during the period 1900 to 1993. We also compare the 1957 earthquake to the 1986 Andreanof Islands earthquake, which occurred within a segment of the 1957 rupture area. The 1986 earthquake represents a rerupturing of the major 1957 asperity.
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References
Abe, K. (1979),Size of Great Earthquakes of 1873–1974 Inferred from Tsunami Data, J. Geophys. Res.84, 1561–1568.
Beck, S., andRuff, L. (1987),Rupture Process of the Great 1963 Kurile Islands Earthquake Sequence: Asperity Interaction and Multiple Event Rupture, J. Geophys. Res.92, 14123–14138.
Boyd, T. M., Engdahl, E. R., andSpence, W.,Analysis of seismicity associated with a complete seismic cycle along the Aleutian arc: 1957–1979. InWadati Conference on Great Subduction Earthquakes, Sept. 16–19, 1992 (eds. Christensen, D., Wyss, M., Habermann, R. E., and Davies, J.) 43–50 in extended abstracts, 1992.
Boyd, T. M., andNábêlek, J. L. (1988),Rupture Process of the Andreanof Islands Earthquake of May 7, 1986, Bull. Seismol. Soc. Am.78, 1653–1673.
Das, S., andKostrov, B. V. (1990),Inversion for Seismic Slip Rate History and Distribution with Stabilizing Constraints: Application to the 1986 Andreanof Islands Earthquake, J. Geophys. Res.95, 6899–6913.
DeMets, C., Gordon, R. G., Argus, D. F., andStein, S. (1990),Current Plate Motions, Geophys. J. Int.101, 425–478.
Ekström, G., andEngdahl, E. R. (1989),Earthquake Source Parameters and Stress Distribution in the Adak Island Region of the Central Aleutian Islands, Alaska, J. Geophys. Res.94, 15499–15519.
Fukao, Y., andFurumoto, M. (1979),Stress Drops, Wave Spectra and Recurrence Intervals of Great Earthquakes—Implications of the Etorofu Earthquake of 1958 November 6, Geophys. J. R. Astr. Soc.57, 23–40.
Gilbert, F., andDziewonski, A. M. (1975),An Application of Normal Mode Theory to the Retrieval of Structural Parameters and Source Mechanisms from Seismic Spectra, Philos. Trans. R. Soc. London, Ser. A278, 187–269.
Hatori, T. (1981),Tsunami Magnitude and Source Area of the Aleutian-Alaska Tsunamis, Bull. Earthq. Res. Inst., Univ. of Tokyo56, 97–110.
House, L. S., Sykes, L. R., Davies, J. N., andJacob, K. H.,Identification of a possible seismic gap near Unalaska Island, eastern Aleutians, Alaska. InEarthquake Prediction—An International Review (eds. Simpson, D. W., and Richards, P. G.) 81–92 (American Geophysical Union, 1981).
Houston, H., andEngdahl, E. R. (1989),A Comparison of the Spatio-temporal Distribution of Moment Release for the 1986 Andreanof Islands Earthquake with Relocated Seismicity, Geophys. Res. Lett.16, 1421–1424.
Hwang, L. J., andKanamori, H. (1986),Of the May 7, 1986 Andreanof Islands Earthquake Source Parameters, Geophys. Res. Lett.13, 1426–1429.
Johnson, J. M., andSatake, K. (1993),Source Parameters of the 1957 Aleutian Earthquake from Tsunami Waveforms, Geophys. Res. Lett.20, 1487–1490.
Kanamori, H. (1977),The Energy Release in Great Earthquakes, J. Geophys. Res.82, 2981–2987.
Kanamori, H., andMcNally, K. C. (1982),Variable Rupture Mode of the Subduction Zone along the Ecuador-Colombia Coast, Bull. Seismol. Soc. Am.72, 1241–1253.
Kelleher, J. A. (1972),Rupture Zones of Large South American Earthquakes and Some Predictions, J. Geophys. Res.77, 2087–2103.
Lane, F. D., andBoyd, T. M. (1990),A Simulated Annealing Approach to the Inversion of Surface Wave Directivities, EOS71, 1468.
McCaffrey, R. (1992),Oblique Plate Convergence, Slip Vectors, and Forearc Deformation, J. Geophys. Res.97, 8905–8915.
Nishenko, S. P. (1991),Circum-Pacific Seismic Potential: 1989–1999, Pure and Appl. Geophys.135, 169–259.
Nishenko, S. P., andMcCann, W. R.,Seismic potential for the world's major plate boundaries: 1981. InEarthquake Prediction—An International Review (eds. Simpson, D. W., and Richards, P. G.) 20–28 (American Geophysical Union, 1981).
Okada, Y. (1985),Surface Deformation due to Shear and Tensile Faults in a Half-space, Bull. Seismol. Soc. Am.75, 1135–1154.
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.
Ruff, L., Kanamori, H., andSykes, L. R. (1985),The 1957 Great Aleutian Earthquake, EOS66, 298.
Satake, K. (1989),Inversion of Tsunami Waveforms for the Estimation of Heterogeneous Fault Motion of Large Submarine Earthquakes: The 1968 Tokachi-oki and the 1983 Japan Sea Earthquakes, J. Geophys. Res.94, 5627–5636.
Schwartz, S. Y., andRuff, L. J. (1987),Asperity Distribution and Earthquake Occurrence in the Southern Kuril Islands Arc, Phys. Earth Planet. Inter.49, 54–77.
Sykes, L. (1971),Aftershock Zones of Great Earthquakes, Seismicity Gaps, and Earthquake Prediction for Alaska and the Aleutians, J. Geophys. Res.76, 8021–8041.
Sykes, L. R., Kisslinger, J. B., House, H., Davies, J. N., andJacob, K. H.,Rupture zones and repeat times of great earthquakes along the Alaska-Aleutian Arc, 1784–1980. InEarthquake Prediction—An International Review (eds. Simpson, D. W., and Richards, P. G.) 73–80 (American Geophysical Union, 1981).
Tichelaar, B. W., andRuff, L. J. (1989),How Good are our Best Models? Jackknifing, Bootstrapping, and Earthquake Depth, EOS70, 593, 605–606.
Woodhouse, J. H., andDziewonski, A. M. (1984),Mapping the Upper Mantle: Three-dimensional Modeling of Earth Structure by Inversion of Seismic Waveforms, J. Geophys. Res.89, 5953–5986.
Yoshida, S. (1992),Waveform Inversion for Rupture Process using a Non-flat Seafloor Model: Application to 1986 Andreanof Islands and 1985 Chile Earthquakes, Tectonophys.211, 45–59.
Zhang, Y.-S., andTanimoto, T. (1993),High-resolution Global Upper Mantle Structure and Plate Tectonics, J. Geophys. Res.98, 9793–9823.
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Johnson, J.M., Tanioka, Y., Ruff, L.J. et al. The 1957 great Aleutian earthquake. PAGEOPH 142, 3–28 (1994). https://doi.org/10.1007/BF00875966
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DOI: https://doi.org/10.1007/BF00875966