LEUZE-EN-HAINAUT (BE)
Quarry blast5 September 2022
- Magnitude
- 2.0ML
- Depth
- –
- Belgian time
- 12:31:242022-09-05
- UTC
- 10:31:242022-09-05
Main parameters
| Date and time | 2022-09-05 10:31:24 UTC 2022-09-05 12:31:24 Belgian time |
|---|---|
| Magnitude | ML 2.0 |
| Epicentral coordinates | 50.611° N, 3.601° E Uncertainty ± 3.3 km |
| Event ID | ROB 17015 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-07 09:42:26 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
- 12
- Epicentral distance
- 34.1 – 187.3km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.4km/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 0.19 s. S wave: 4 measurements, root-mean-square deviation 0.43 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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)11 stations | |||||
| SKQSteenkerque | 34.1 | 83 | 10:31:30.63+6.26 s | – | – |
| BRQBracquegnies | 40.6 | 111 | 10:31:31.42+7.05 s | – | – |
| RQRRonquières | 44.2 | 91 | 10:31:32.19+7.82 s | – | – |
| SNFSeneffe | 49.6 | 103 | 10:31:32.99+8.62 s | 10:31:39.99+15.62 s | 7.00 |
| TGATangissart | 65.2 | 90 | 10:31:35.65+11.28 s | 10:31:44.75+20.38 s | 9.10 |
| MRDMaredsous | 89.7 | 112 | 10:31:39.78+15.41 s | – | – |
| DOUDourbes | 91.1 | 129 | 10:31:40.20+15.83 s | 10:31:51.74+27.37 s | 11.54 |
| GESGesves | 108.4 | 103 | 10:31:43.28+18.91 s | 10:31:56.38+32.01 s | 13.10 |
| CLAClavier | 122.5 | 99 | 10:31:45.35+20.98 s | 10:31:59.44+35.07 s | 14.09 |
| RCHRochefort | 126.3 | 113 | 10:31:44.86+20.49 s | 10:32:01.23+36.86 s | 16.37 |
| KLBKalborn | 187.3 | 107 | 10:31:54.68+30.31 s | 10:32:16.60+52.23 s | 21.92 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 165.6 | 83 | 10:31:51.88+27.51 s | – | – |