EQ at Milford Sound at 13:41:14 on 12-Aug-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 4.2
Depth: 5 km
Distance: 438 km
Estimated travel time of P waves: 61 s
Estimated travel time of S waves: 109 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 1.27 | 0.691 | 100.0 |
| T < 1 s | 1.01 | 0.394 | 48.9 |
| T > 1 s | 0.91 | 2.4 | 51.1 |
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.