Elastogravity Waves and Dynamic Ground Motions in the Korean Peninsula Generated by the March 11, 2011 MW9.0 Tohoku‐Oki Megathrust Earthquake

The mass dislocations caused by large coseismic slips in megathrust earthquakes are large enough to produce elastogravity waves. Despite, successful identification of elastogravity‐wave development during megathrust earthquakes, the nature of ground motions and hazard potentials in regional and tele...

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Bibliographic Details
Published in:Journal of geophysical research. Solid earth 2021-02, Vol.126 (2), p.n/a
Main Authors: Hong, Tae‐Kyung, Kim, Ilgoo, Park, Seongjun, Kil, Dongwoo
Format: Article
Language:English
Subjects:
Azimuth
Broadband
Deformation
Displacement
Distance
dynamic ground motions
Earthquakes
elastogravity waves
Frequency ranges
full frequency range
Geological hazards
Geophysics
Ground motion
Hazard mitigation
Lithosphere
megathrust earthquake
Mitigation
P-waves
Properties
Radiation
Ray paths
Records
Seismic activity
Seismic design
Seismic hazard
Seismic waves
Seismograms
Survival
very‐long‐period waves
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Summary:The mass dislocations caused by large coseismic slips in megathrust earthquakes are large enough to produce elastogravity waves. Despite, successful identification of elastogravity‐wave development during megathrust earthquakes, the nature of ground motions and hazard potentials in regional and teleseismic distances remains unknown. The dynamic ground motions from the March 11, 2011 MW9.0 Tohoku‐Oki megathrust earthquake are retrieved from broadband seismic records throughout the Korean Peninsula. The dynamic ground motions of the megathrust earthquake are dominated by low‐frequency (
ISSN:2169-9313
2169-9356
DOI:10.1029/2020JB020628