EQ at Christchurch at 01:06:11 on 18-Jul-2019
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.1
Depth: 5 km
Distance: 12 km
Estimated travel time of P waves: 2 s
Estimated travel time of S waves: 4 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 4.31 | 0.116 | 100.0 |
| T < 1 s | 3.03 | 0.122 | 91.9 |
| T > 1 s | 0.81 | 3.9 | 8.1 |
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.