EQ at Christchurch at 17:16:06 on 21-Oct-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.2
Depth: 6 km
Distance: 18 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 | 7.64 | 0.172 | 100.0 |
| T < 1 s | 6.78 | 0.162 | 98.4 |
| T > 1 s | 0.89 | 2.7 | 1.6 |
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.