Quality assessment of microseismic event locations and traueltime picks using a multiplet analysis

摘要

Event groups with highly correlated waveforms known as multiplets illuminate event location quality before and after undergoing postprocessing. To produce a pair of highly correlated waveforms in a heterogeneous medium, a pair of events must be nearly colocated. Most location algorithms do not consider interevent waveform correlation; thus location issues are highlighted by highly correlated, widely spaced event pairs.