EQ at Christchurch at 12:44:38 on 04-Aug-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 1.6
Depth: 4 km
Distance: 28 km
Estimated travel time of P waves: 5 s
Estimated travel time of S waves: 8 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 1.51 | 0.566 | 100.0 |
| T < 1 s | 1.07 | 0.145 | 30.8 |
| T > 1 s | 1.43 | 3.8 | 69.1 |
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.