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

Earth, Planets and Space

Table 1 Total number of events in each category

Category	N	Rate (%)
0: Matched	26,075	69.5
1: Earthquake and phases are correct	8795	23.5
2: Earthquake and a few phases are incorrect	255	0.7
3: Earthquake and phases are incorrect	416	1.1
4: Noise	1952	5.2
Total	37,493	100.0

N and rate indicate the number of events and percentage to total events, respectively