Map of the PASSCAL Micronesian experiment. The structure of the Ontong-Java plateau is investigated by using surface waves propagated from earthquakes in the Solomon Islands subduction zone, along the paths traced to the seismic stations at Chuuk, Pohnpei, Kosrae, and Nauru. The earthquakes (red symbols) are representative of the expectable level of seismicity for a two-year period.

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