Repeating deep earthquakes: evidence for fault reactivation at great depth.

@article{Wiens2001RepeatingDE,
  title={Repeating deep earthquakes: evidence for fault reactivation at great depth.},
  author={Douglas A Wiens and Nathan O. Snider},
  journal={Science},
  year={2001},
  volume={293 5534},
  pages={1463-6}
}
We have identified three groups of deep earthquakes showing nearly identical waveforms in the Tonga slab. Relocation with a cross-correlation method shows that each cluster is composed of 10 to 30 earthquakes along a plane 10 to 30 kilometers in length. Some of the earthquakes are colocated, demonstrating repeated rupture of the same fault, and one pair of events shows identical rupture complexity, suggesting that the temporal and spatial rupture pattern was repeated. Recurrence intervals show… CONTINUE READING