EQ at Christchurch at 19:49:16 on 08-Apr-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.3
Depth: 5 km
Distance: 27 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 | 226.24 | 0.260 | 100.0 |
| T < 1 s | 223.46 | 0.262 | 99.2 |
| T > 1 s | 22.40 | 1.4 | 0.8 |
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.