Both indicate a thrust-fault mechanism with a strike, dip, and rake angles varying from about 200° to 209°, 45° to 59°, and 42° to 50°, respectively, and with a moment magnitude of about 6.2.
The horizontal stresses are greater than the vertical stress, indicating a thrust faulting regime at all tested locations.
The focal mechanism solution, estimated by Centroid Moment Tensor inversion [2] indicates a thrust faulting, or low-angle reverse fault, mechanism.
This approach is supported by the work of Ito et al. (2004), who pointed out that the mechanisms of the aftershocks, distributed along the boundary between the Pacific and the North American plates, are similar to that of the main event, indicating a thrust fault with a nodal plane dipping to the northwest.
The moment tensor solution obtained from the global CMT project (Dziewonski & Anderson 1981; Ekström et al. 2012) indicates a thrust faulting mechanism with a strong non-double-couple component (Fig. 1).
The focal mechanisms of the down-dip earthquakes indicate a NE-SW thrust-faulting system, whereas the earthquakes in the up-dip portion indicate an extensional-faulting component, with a T-axis oriented in a roughly E-W direction (Fig. 2(b)) (Kato et al., 2011).
Meanwhile, rifle bullets fell into the International Settlement behind British and American lines, indicating a Japanese thrust toward that section.
Recent studies on Riasi Thrust indicate a cumulative vertical separation of 272 ± 10 m and shortening rate of 5.6 ± 2.8 7.1 ± 4.06 mm/year in last 100 ka (Gavillot et al. 2016).
The distribution of the slip vectors indicates that a thrust fault mechanism with a small left-lateral strike-slip component (assuming the NE-SW plane is the active plane) occurred near the hypocenter and in deep parts.
Using this launch date along with estimates for the vehicle mass and performance characteristics of the electric propulsion system, low-thrust trajectory analyses indicate a 2.56-year flight time to rendezvous with 2017 PDC.
A seismic inversion of long-period P and SH body-wave seismograms indicated a rupture on a thrust fault that dips 49 degrees to the southwest and had a centroid depth of roughly 10 km.
