Fig. 2From: Along-trench structural variation and seismic coupling in the northern Japan subduction zoneExamples of observed seismic data (reduced by 7.5 km/s; a 5–20 Hz bandpass filter, deconvolution, and automatic gain control with a 1-s window were applied). Red arrows indicate phases that project onto the forearc Moho by traveltime mapping (Fig. 4). Black arrows indicate deeper reflections.Back to article page