Mulgor Logo EQ at Christchurch at 13:33:47 on 27-Jul-2019

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 3.4
Depth: 4 km
Distance: 20 km
Estimated travel time of P waves: 3 s
Estimated travel time of S waves: 6 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 30.71 0.212 100.0
T < 1 s 29.65 0.212 99.0
T > 1 s 3.82 1.8 1.0

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.