Mulgor Logo EQ at Christchurch at 14:41:37 on 04-Jul-2020

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 1.9
Depth: 4 km
Distance: 3 km
Estimated travel time of P waves: 1 s
Estimated travel time of S waves: 1 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 10.34 0.131 100.0
T < 1 s 9.19 0.129 98.7
T > 1 s 0.97 2.2 1.3

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.