Mulgor Logo EQ at Christchurch at 08:51:21 on 25-Jun-2020

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 1.8
Depth: 3 km
Distance: 13 km
Estimated travel time of P waves: 2 s
Estimated travel time of S waves: 4 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 3.14 0.183 100.0
T < 1 s 2.32 0.135 70.5
T > 1 s 1.43 4.3 29.4

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.