Mulgor Logo EQ at Christchurch at 19:49:16 on 08-Apr-2020

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 4.3
Depth: 5 km
Distance: 27 km
Estimated travel time of P waves: 5 s
Estimated travel time of S waves: 8 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 226.24 0.260 100.0
T < 1 s 223.46 0.262 99.2
T > 1 s 22.40 1.4 0.8

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.