Table 2 Summary of source parameters in the aftershock waveform modeling

Epicenter^a

42.8042°N, 141.9882°E

Moment tensor depth^b

29 km

Moment tensor^b

M_xx = − 0.1267 × 10¹⁵ Nm

M_xy = − 0.0592 × 10¹⁵ Nm

M_xz = − 0.1178 × 10¹⁵ Nm

M_yy = − 0.7915 × 10¹⁵ Nm

M_yz = − 1.8442 × 10¹⁵ Nm

M_zz = 0.9182 × 10¹⁵ Nm

Seismic moment^b

2.04 × 10¹⁵ Nm (M_W 4.1)

Source duration

0.8 s