SOIGNIES (BE)
Quarry blast13 September 2022
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 14:03:212022-09-13
- UTC
- 12:03:212022-09-13
Main parameters
| Date and time | 2022-09-13 12:03:21 UTC 2022-09-13 14:03:21 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.586° N, 4.073° E Uncertainty ± 1.8 km |
| Event ID | ROB 17125 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-26 13:25:23 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
- 17
- Epicentral distance
- 7.0 – 158.5km
- Mean velocity, P wave
- 5.8km/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: 9 measurements, root-mean-square deviation 0.20 s. S wave: 6 measurements, root-mean-square deviation 0.22 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)14 stations | |||||
| SKQSteenkerque | 7.0 | 4 | 12:03:23.15+1.32 s | 12:03:24.21+2.38 s | 1.06 |
| RQRRonquières | 11.0 | 78 | 12:03:23.84+2.01 s | 12:03:25.56+3.73 s | 1.72 |
| BRQBracquegnies | 12.5 | 159 | 12:03:23.87+2.04 s | – | – |
| SNFSeneffe | 17.1 | 119 | 12:03:24.88+3.05 s | 12:03:27.39+5.56 s | 2.51 |
| TGATangissart | 31.8 | 86 | 12:03:27.24+5.41 s | 12:03:31.25+9.42 s | 4.01 |
| MRDMaredsous | 58.6 | 122 | 12:03:32.26+10.43 s | 12:03:39.21+17.38 s | 6.95 |
| DOUDourbes | 66.1 | 146 | 12:03:33.47+11.64 s | 12:03:41.78+19.95 s | 8.31 |
| GESGesves | 75.4 | 107 | 12:03:35.23+13.40 s | – | – |
| CLAClavier | 89.1 | 102 | 12:03:37.04+15.21 s | – | – |
| MEMSMembach | 137.2 | 88 | 12:03:44.41+22.58 s | 12:04:03.33+41.50 s | 18.92 |
| MEMHMembach | 137.2 | 88 | 12:03:44.51+22.68 s | – | – |
| MRGMont Rigi | 142.1 | 93 | 12:03:46.10+24.27 s | – | – |
| TNLTernell | 145.7 | 89 | 12:03:46.48+24.65 s | 12:04:03.22+41.39 s | 16.74 |
| KLBKalborn | 154.7 | 110 | 12:03:48.12+26.29 s | – | – |
| Dutch seismic network (KNMI)2 stations | |||||
| VKBValkenburg | 124.8 | 75 | 12:03:43.85+22.02 s | – | – |
| HGNHeimansgroeve | 132.8 | 81 | 12:03:44.84+23.01 s | – | – |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 158.5 | 87 | 12:03:48.56+26.73 s | – | – |