EQ at Hawera at 05:03:31 on 28-Apr-2021
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.2
Depth: 138 km
Distance: 410 km
Estimated travel time of P waves: 56 s
Estimated travel time of S waves: 99 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 5.93 | 0.187 | 100.0 |
| T < 1 s | 5.72 | 0.184 | 98.8 |
| T > 1 s | 0.72 | 2.3 | 1.2 |
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.