EQ at Whanganui at 19:02:06 on 21-Jan-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.2
Depth: 12 km
Distance: 425 km
Estimated travel time of P waves: 59 s
Estimated travel time of S waves: 104 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 1.66 | 0.482 | 100.0 |
| T < 1 s | 1.33 | 0.233 | 49.9 |
| T > 1 s | 1.40 | 2.8 | 50.1 |
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.