The 1964 Prince William Sound earthquake: Joint inversion of tsunami and geodetic data

1996 ◽  
Vol 101 (B1) ◽  
pp. 523-532 ◽  
Author(s):  
Jean M. Johnson ◽  
Kenji Satake ◽  
Sanford R. Holdahl ◽  
Jeanne Sauber
Keyword(s):  
Joint Inversion ◽  
Geodetic Data ◽  
Prince William Sound

scholarly journals Slip distribution of the 2005 Nias earthquake (Mw 8.6) inferred from geodetic and far-field tsunami data

2020 ◽  
Vol 223 (2) ◽  
pp. 1162-1171
Author(s):  
Yushiro Fujii ◽  
Kenji Satake ◽  
Shingo Watada ◽  
Tung-Cheng Ho
Keyword(s):  
Coupling Effect ◽  
Joint Inversion ◽  
Geodetic Data ◽  
Slip Distribution ◽  
Far Field ◽  
Gravitational Coupling ◽  
Waveform Data ◽  
Submarine Earthquakes ◽  
Tsunami Waveform ◽  
2004 Tsunami

SUMMARY We estimated the slip distribution on the fault of the 2005 Nias earthquake (Mw 8.6) by inversions of local GPS and coastal uplift/subsidence data and tsunami waveform data. The 2005 Nias earthquake occurred approximately three months after the 2004 Sumatra–Andaman earthquake (Mw 9.1) at the southern extension off Sumatra Island, Indonesia. The tsunami from the 2005 earthquake caused significantly less damage than the 2004 tsunami, yet was recorded at tide gauges and ocean bottom pressure gauges around the Indian Ocean, including the coasts of Africa and Antarctica. The elastic and gravitational coupling between the solid earth and the ocean causes not only a traveltime delay but also the change of waveforms of far-field tsunamis relative to the prediction based on the long-wave theory. We corrected the computed tsunami Green's functions for the elastic and gravitational coupling effect in the tsunami waveform inversion. We found a diffused slip (∼2 m over an area of 400 km × 100 km) at deeper parts (20–54 km) of the fault with a large localized slip (7 m over 100 km × 100 km) slightly south of the epicentre. The large slips at deeper parts of the fault were responsible for the small tsunami generation. Inversion using far-field tsunami data yielded a slip distribution similar to that obtained using local geodetic data alone and that from the joint inversion of local geodetic and far-field tsunami data, which is also similar to slip distributions from previous studies based on local geodetic data. This demonstrates that far-field tsunami waveforms, once corrected for propagation effects, can be used to estimate the slip distribution of large submarine earthquakes leading to results that are similar to those obtained using sparse local geodetic data.

scholarly journals Joint inversion of strong motion and geodetic data for the source process of the 2003 Tokachi-oki, Hokkaido, earthquake

2004 ◽  
Vol 56 (3) ◽  
pp. 329-334 ◽  
Author(s):  
Kazuki Koketsu ◽  
Kazuhito Hikima ◽  
Shin’ichi Miyazaki ◽  
Satoshi Ide
Keyword(s):  
Joint Inversion ◽  
Strong Motion ◽  
Geodetic Data ◽  
Source Process

scholarly journals Joint inversion of seismic and geodetic data for the source of the 2010 March 4, Mw 6.3 Jia-Shian, SW Taiwan, earthquake

2013 ◽  
Vol 193 (3) ◽  
pp. 1608-1626 ◽  
Author(s):  
Mong-Han Huang ◽  
Douglas Dreger ◽  
Roland Bürgmann ◽  
Seung-Hoon Yoo ◽  
Manabu Hashimoto
Keyword(s):  
Joint Inversion ◽  
Geodetic Data ◽  
Taiwan Earthquake
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