Mulgor Logo EQ at Christchurch at 12:52:23 on 25-Aug-2019

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 1.9
Depth: 5 km
Distance: 23 km
Estimated travel time of P waves: 4 s
Estimated travel time of S waves: 7 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 0.296 100.0
T < 1 s 0.98 0.162 51.4
T > 1 s 0.78 2.7 48.8

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.