EQ at Christchurch at 08:51:21 on 25-Jun-2020
Vertical Velocities recorded at Port Levy
EQ Details
Magnitude: 1.8
Depth: 3 km
Distance: 13 km
Estimated travel time of P waves: 2 s
Estimated travel time of S waves: 4 s
Travel times of P and S waves were derived from this website
| Sig. Height μm/s | Sig. Period s | % of Variance | |
|---|---|---|---|
| Raw | 3.14 | 0.183 | 100.0 |
| T < 1 s | 2.32 | 0.135 | 70.5 |
| T > 1 s | 1.43 | 4.3 | 29.4 |
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.