WANZE (BE)
Quarry blast6 September 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 13:46:002022-09-06
- UTC
- 11:46:002022-09-06
Main parameters
| Date and time | 2022-09-06 11:46:00 UTC 2022-09-06 13:46:00 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.539° N, 5.255° E Uncertainty ± 2.4 km |
| Event ID | ROB 17030 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-07 09:43:40 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
- 13.8 – 78.0km
- Mean velocity, P wave
- 5.5km/s
- Mean velocity, S wave
- 3.2km/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 0.50 s. S wave: 6 measurements, root-mean-square deviation 0.91 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)7 stations | |||||
| CLAClavier | 13.8 | 166 | 11:46:03.55+2.62 s | – | – |
| GESGesves | 20.9 | 215 | 11:46:03.74+2.81 s | 11:46:06.99+6.06 s | 3.25 |
| RCHRochefort | 42.8 | 183 | 11:46:08.12+7.19 s | 11:46:13.84+12.91 s | 5.72 |
| TGATangissart | 52.5 | 278 | 11:46:10.84+9.91 s | 11:46:16.92+15.99 s | 6.08 |
| HOUHouvegnez | 57.1 | 111 | 11:46:11.55+10.62 s | 11:46:20.00+19.07 s | 8.45 |
| DOUDourbes | 68.2 | 224 | 11:46:12.82+11.89 s | 11:46:20.58+19.65 s | 7.76 |
| KLBKalborn | 78.0 | 128 | 11:46:14.55+13.62 s | 11:46:25.89+24.96 s | 11.34 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 54.0 | 62 | 11:46:09.79+8.86 s | – | – |