EQ at Christchurch at 11:36:46 on 22-Dec-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 3.7
Depth: 11 km
Distance: 17 km
Estimated travel time of P waves: 4 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 | 360.78 | 0.257 | 100.0 |
| T < 1 s | 366.37 | 0.265 | 99.9 |
| T > 1 s | 13.39 | 1.3 | 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.