W-phase Moment Tensor Solution (USGS)
Event time: 2017-01-22 04:30:23 UTC.
Seismic Moment: 9.75e+20 Nm.
Magnitude: 7.9 Mw.
Focal depth: 136 km.
Epicenter: 6.214°S and 155.122°E.
Strike/dip/rake: 298°/37°/76° (Nodal Plane 1)
Fault dimension: 96 km × 48 km.
Slip amount: 5.2 m.
Tsunami Simulation Result
Based on tsunami simulation, the maximum tsunami amplitude along the coast of Bougainville Island is up to 1.2 m. The maximum tsunami amplitude around Buka Town is 0.8 m. The tsunami is confined by the Solomon Basin and only very small tsunami energy escape the Basin. While tsunami amplitudes along the coast of other islands around the Solomon Basin are less than 20 cm.