EARTHQUAKE RELOCATION
Earthquake locations are fundamental for studies of earthquake physics, fault orientations and Earth’s deformation. Accurate earthquake locations are also essential for characterizing magmatic pathways and identifying magma migration. Improving earthquake location accuracy has been an important and challenging goal in seismology for the past few decades. In our relocation studies, we improve both absolute and relative earthquake location accuracies by applying the three-dimensional ray tracing and differential time relocation methods using waveform cross-correlation data. These approaches have been applied to different tectonically and volcanically active areas, including California, Puerto Rico, and Hawaii.