Rock Fracture Monitoring Based on High-Precision Microseismic Event Location Using 3D Multiscale Waveform Inversion

Table 1

Location errors of the eight test events using different waveform inversion strategies.

Method	Location error (m) for different events
	1	2	3	4	5	6	7	8	Average
Multiscale inversion	1.5	1.8	1.9	1.6	0.9	0.8	1.1	0.6	1.3
Single fine grid inversion	1.4	1.8	1.7	1.4	0.8	0.6	1.5	0.7	1.2