EQ at Christchurch at 03:54:25 on 29-Apr-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 3.0
Depth: 8 km
Distance: 21 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
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 21.14 | 0.189 | 100.0 |
| T < 1 s | 18.31 | 0.188 | 99.4 |
| T > 1 s | 1.56 | 2.8 | 0.6 |
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.