EQ at Wairoa at 03:43:58 on 20-Dec-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.1
Depth: 34 km
Distance: 655 km
Estimated travel time of P waves: 85 s
Estimated travel time of S waves: 152 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 4.56 | 0.255 | 100.0 |
| T < 1 s | 3.67 | 0.202 | 89.5 |
| T > 1 s | 1.55 | 2.6 | 10.5 |
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.