EQ at Christchurch at 11:45:52 on 10-Feb-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.8
Depth: 4 km
Distance: 19 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 | 12.66 | 0.197 | 100.0 |
| T < 1 s | 10.10 | 0.194 | 93.9 |
| T > 1 s | 2.24 | 3.0 | 6.1 |
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.