EQ at Christchurch at 20:33:54 on 18-Feb-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 3.2
Depth: 10 km
Distance: 17 km
Estimated travel time of P waves: 3 s
Estimated travel time of S waves: 6 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 37.46 | 0.169 | 100.0 |
| T < 1 s | 37.41 | 0.148 | 99.9 |
| T > 1 s | 1.46 | 1.5 | 0.1 |
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.