Ambient noise surface wave tomography of marginal seas in east Asia

Qing Wang, Xiao Dong Song, Jian Ye Ren

Research output: Contribution to journalArticlepeer-review


We conducted ambient noise tomography in east Asia, including the Chinese coastal provinces, Korea Peninsular, Japan, Taiwan Island, and marginal seas in between. We retrieved Rayleigh Green's functions from inter-station correlations of 12 months of continuous waveform data at 573 broadband stations in the region. We obtained group and phase velocity dispersion curves and dispersion maps for periods from 10 to 70 s and inverted for 3D Vs model of the crust and uppermost mantle. Moho and lithosphere thickness were derived from the 3D model. We observed three prominent low velocity zones in the upper mantle, two in the accretionary wedges above the Pacific and Philippine subduction slabs and one beneath the Changbai Mountain region. The crust and lithosphere are generally thin in the region. The velocity anomalies, crustal thickness, and lithosphere thickness all show a similar trend in NNE-SSW direction. The lithosphere shows a striking “sausage”-type structure with alternating thickness. The crust thickness and lithosphere thickness both decrease progressively from NW to SE direction, which coincides with the distribution of episodic magmatism in SE China. We propose that the subduction of paleo-Pacific slab and its rollback were mainly responsible for the crustal and lithosphere extension and the mantle lithosphere removal in east Asia.

Original languageEnglish (US)
Pages (from-to)13-25
Number of pages13
JournalEarth and Planetary Physics
Issue number1
StatePublished - Nov 2017


  • Moho
  • ambient noise tomography
  • east Asia
  • extension
  • lithosphere

ASJC Scopus subject areas

  • Atmospheric Science
  • Space and Planetary Science
  • Astronomy and Astrophysics


Dive into the research topics of 'Ambient noise surface wave tomography of marginal seas in east Asia'. Together they form a unique fingerprint.

Cite this