Mulgor Logo EQ at Christchurch at 07:58:46 on 28-Oct-2020

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 1.7
Depth: 4 km
Distance: 34 km
Estimated travel time of P waves: 6 s
Estimated travel time of S waves: 10 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 1.42 0.194 100.0
T < 1 s 1.25 0.131 71.2
T > 1 s 0.65 2.1 28.6

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.