Double seismic zone and seismicity in the mantle wedge beneath the Ogasawara Islands identified by an ocean bottom seismometer observation

Earth, Planets and Space

Table 3 Comparison between PDE hypocenters and those of this study

No.	PDE (1)					This study (2)					Onset time difference (1)–(2) (s)	Location difference (1)–(2) (km)	Depth difference (1)–(2) (km)
No.	Origin time^a (JST)	Lat. (N) (°)	Long. (E) (°)	Depth (km)	Magnitude	Origin time^a (JST)	Lat. (N) (°)	Long. (E) (°)	Depth (km)	Magnitude	Onset time difference (1)–(2) (s)	Location difference (1)–(2) (km)	Depth difference (1)–(2) (km)
1	2015/07/20 20:53:12.88	27.50	141.04	103	4.6	2015/07/20 20:53:12.31	27.50	141.25	115	5.1	0.57	23	− 12
2	2015/09/14 12:47:43.35	26.83	141.08	113	4.5	2015/09/14 12:47:43.96	26.75	141.46	126	4.7	− 0.61	43	− 13