Mulgor Logo EQ at Christchurch at 15:50:04 on 19-Apr-2020

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 1.7
Depth: 5 km
Distance: 17 km
Estimated travel time of P waves: 3 s
Estimated travel time of S waves: 5 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 1.86 0.160 100.0
T < 1 s 1.56 0.125 68.5
T > 1 s 0.80 2.5 30.7

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.