Mulgor Logo EQ at Christchurch at 04:12:13 on 23-Apr-2019

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 3.6
Depth: 12 km
Distance: 34 km
Estimated travel time of P waves: 6 s
Estimated travel time of S waves: 11 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 36.84 0.247 100.0
T < 1 s 35.90 0.241 98.8
T > 1 s 4.42 1.5 1.2

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.