Mulgor Logo EQ at Greymouth at 12:17:16 on 27-Sep-2019

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 4.0
Depth: 10 km
Distance: 159 km
Estimated travel time of P waves: 27 s
Estimated travel time of S waves: 47 s

Travel times of P and S waves were derived from this website

Statistics of Signal at Port Levy
Sig. Height μm/s Sig. Period s % of Variance
Raw 5.97 0.273 100.0
T < 1 s 5.61 0.241 87.8
T > 1 s 2.15 1.7 12.1

Significant height and period are derived from a zero-crossing analysis of the wave signal after the arrival time of the p waves.
They are the averages of the highest third of the waves.