WANZE (BE)
Quarry blast9 September 2022
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 13:50:142022-09-09
- UTC
- 11:50:142022-09-09
Main parameters
| Date and time | 2022-09-09 11:50:14 UTC 2022-09-09 13:50:14 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.532° N, 5.214° E Uncertainty ± 5.3 km |
| Event ID | ROB 17075 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-09 14:28:41 Belgian time
Location map
- Epicentre
- Station that recorded the event
Arrival times at the stations
Each station first records the P wave, the fastest, then the S wave. The farther a station is from the epicentre, the later the waves reach it and the wider the gap between the two.
- Stations
- 5
- Epicentral distance
- 14.1 – 79.8km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.5km/s
- P wave
- S wave
- Curve fitted to the measurements
Notes and method
Curves: travel time of a direct wave in a homogeneous medium. The velocity of each wave and an origin-time shift, common to both, are fitted to the measurements by least squares. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 5 measurements, root-mean-square deviation 0.52 s. S wave: 5 measurements, root-mean-square deviation 0.41 s.
Station measurements
P- and S-wave arrivals and ground displacement measured at each station. Click a column heading to change the order.
| km | ° | UTC | UTC | s | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)5 stations | |||||
| CLAClavier | 14.1 | 154 | 11:50:17.16+3.06 s | 11:50:18.84+4.74 s | 1.68 |
| GESGesves | 18.7 | 209 | 11:50:17.45+3.35 s | 11:50:20.68+6.58 s | 3.23 |
| MRDMaredsous | 40.8 | 231 | 11:50:20.76+6.66 s | 11:50:26.74+12.64 s | 5.98 |
| DOUDourbes | 65.7 | 222 | 11:50:26.38+12.28 s | 11:50:32.93+18.83 s | 6.55 |
| KLBKalborn | 79.8 | 127 | 11:50:27.82+13.72 s | 11:50:37.84+23.74 s | 10.02 |