EQ at Christchurch at 19:39:52 on 12-Jan-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 2.8
Depth: 10 km
Distance: 33 km
Estimated travel time of P waves: 6 s
Estimated travel time of S waves: 10 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 10.99 | 0.227 | 100.0 |
| T < 1 s | 7.93 | 0.202 | 94.3 |
| T > 1 s | 2.13 | 2.6 | 5.7 |
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.