Abstract
Focal mechanism solutions of shallow earthquakes in the Fiji Plateau and Lau Basin provide significant contributions to the understanding of the recent tectonic movements beneath these marginal seas. Left-lateral shear zones are identified on the linear shallow seismic zone extending from north of the Fiji Islands to the northern end of the Lau Basin. In the central area of the Fiji Plateau and in the northern part of the Lau Basin nearly NW-SE trending opening tectonics is suggested. Nearly E-W striking compressional tectonics is inferred near the western edge of the Hazel Holme Fracture Zone.
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