ANDENNE (BE)
Quarry blast5 January 2022
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 14:21:362022-01-05
- UTC
- 13:21:362022-01-05
Main parameters
| Date and time | 2022-01-05 13:21:36 UTC 2022-01-05 14:21:36 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.503° N, 4.977° E Uncertainty ± 0.9 km |
| Event ID | ROB 15115 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-01-10 10:33:47 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
- 9
- Epicentral distance
- 15.3 – 74.2km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.3km/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 0.32 s. S wave: 7 measurements, root-mean-square deviation 0.31 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)8 stations | |||||
| GESGesves | 15.3 | 149 | 13:21:38.54+2.39 s | 13:21:40.73+4.58 s | 2.19 |
| CLAClavier | 24.9 | 112 | 13:21:40.49+4.34 s | 13:21:44.12+7.97 s | 3.63 |
| MRDMaredsous | 26.8 | 214 | 13:21:41.04+4.89 s | 13:21:45.05+8.90 s | 4.01 |
| TGATangissart | 34.2 | 290 | 13:21:41.53+5.38 s | 13:21:46.92+10.77 s | 5.39 |
| STISart Tilman | 42.6 | 78 | 13:21:43.91+7.76 s | – | – |
| RCHRochefort | 42.6 | 155 | 13:21:43.61+7.46 s | 13:21:49.72+13.57 s | 6.11 |
| DOUDourbes | 52.9 | 211 | 13:21:45.83+9.68 s | 13:21:52.23+16.08 s | 6.40 |
| MEMHMembach | 74.2 | 80 | 13:21:48.94+12.79 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 73.5 | 66 | 13:21:48.86+12.71 s | 13:21:58.54+22.39 s | 9.68 |