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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Noise classification for the unified earthquake catalog using ensemble learning: the enhanced image of seismic activity along the Japan Trench by the S-net seafloor network

Fig. 2

Classification examples for each category. Each figure shows the vertical seismic waveforms in the order of epicentral distance. The right side shows enlarged views of 1 s before and after the P-wave and S-wave arrival times, for which we basically used reading times. We used theoretical values in the absence of a reading

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