WANZE (BE)
Quarry blast23 November 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 14:04:212022-11-23
- UTC
- 13:04:212022-11-23
Main parameters
| Date and time | 2022-11-23 13:04:21 UTC 2022-11-23 14:04:21 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.545° N, 5.218° E Uncertainty ± 1.2 km |
| Event ID | ROB 17840 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-24 09:14:33 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
- 8
- Epicentral distance
- 15.2 – 97.7km
- 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: 8 measurements, root-mean-square deviation 0.54 s. S wave: 4 measurements, root-mean-square deviation 0.27 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)6 stations | |||||
| CLAClavier | 15.2 | 157 | 13:04:24.98+3.75 s | 13:04:26.41+5.18 s | 1.43 |
| GESGesves | 20.1 | 208 | 13:04:25.09+3.86 s | 13:04:27.52+6.29 s | 2.43 |
| MRDMaredsous | 41.8 | 230 | 13:04:28.47+7.24 s | – | – |
| EBNEben-Emael | 43.0 | 49 | 13:04:28.83+7.60 s | 13:04:33.78+12.55 s | 4.95 |
| DOUDourbes | 66.9 | 222 | 13:04:34.33+13.10 s | – | – |
| VIAVianden | 97.7 | 134 | 13:04:37.78+16.55 s | – | – |
| Dutch seismic network (KNMI)2 stations | |||||
| TERZTerziet | 54.1 | 64 | 13:04:30.90+9.67 s | 13:04:37.67+16.44 s | 6.77 |
| HGNHeimansgroeve | 56.1 | 64 | 13:04:31.23+10.00 s | – | – |