After comparing waveform fits based on the two planes of the input moment tensor, we find that a solution adjusted from the nodal plane striking towards 347.0 deg. fits the data better. The adjusted solution uses 5 plane segments (see Table 1 below) designed to match a priori knowledge of the fault (e.g., 3D slab geometry). The seismic moment release based upon this solution is 2.5e+28 dyne.cm (Mw = 8.2) using a 1D crustal model interpolated from CRUST2.0 (Bassin et al., 2000).

Segment | Strike (deg.) | Dip (deg.) |
---|---|---|

1 | 347.0 | 13.5 |

2 | 347.0 | 9.0 |

3 | 347.0 | 18.5 |

4 | 347.0 | 23.0 |

5 | 347.0 | 25.0 |