Asperity distribution of the 1952 great Kamchatka earthquake and its relation to future earthquake potential in Kamchatka
Johnson, J.M.; Satake, K. (1999). Asperity distribution of the 1952 great Kamchatka earthquake and its relation to future earthquake potential in Kamchatka, in: Sauber, J. et al. Seismogenic and tsunamigenic processes in shallow subduction zones. Pure and Applied Geophysics, 154(3-4): pp. 541-553. https://dx.doi.org/10.1007/978-3-0348-8679-6_8 In: Sauber, J.; Dmowska, R. (Ed.) (1999). Seismogenic and tsunamigenic processes in shallow subduction zones. e-Book edition. Pure and Applied Geophysics, 154(3-4). Springer: Basel. ISBN 978-3-0348-8679-6. vi, 405-776 pp. https://dx.doi.org/10.1007/978-3-0348-8679-6, more In: Pure and Applied Geophysics. Birkhäuser: Basel. ISSN 0033-4553; e-ISSN 1420-9136, more |  |
| Keyword | | | Author keywords | Subduction zones slip distribution tsunamis |
| Abstract | The 1952 Kamchatka earthquake is among the largest earthquakes of this century, with an estimated magnitude of M w = 9.0. We inverted tide gauge records from Japan, North America, the Aleutians, and Hawaii for the asperity distribution. The results show two areas of high slip. The average slip is over 3 m, giving a seismic moment estimate of 155 x 102ONm, or M w = 8.8. The 20th century seismicity of the 1952 rupture zone shows a strong correlation to the asperity distribution, which suggests that the large earthquakes (M > 7) are controlled by the locations of the asperities and that future large earthquakes will also recur in the asperity regions. |
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