EQ at Christchurch at 14:39:31 on 11-Aug-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.8
Depth: 7 km
Distance: 24 km
Estimated travel time of P waves: 4 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 | 14.57 | 0.169 | 100.0 |
| T < 1 s | 14.24 | 0.163 | 99.2 |
| T > 1 s | 1.18 | 2.0 | 0.9 |
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.