Mulgor Logo EQ at Christchurch at 14:23:48 on 09-May-2021

Vertical Velocities recorded at Port Levy

EQ Details

Magnitude: 2.5
Depth: 8 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 7.87 0.183 100.0
T < 1 s 7.34 0.169 96.7
T > 1 s 1.26 1.7 3.3

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.