WANZE (BE)
Quarry blast18 January 2022
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 14:24:072022-01-18
- UTC
- 13:24:072022-01-18
Main parameters
| Date and time | 2022-01-18 13:24:07 UTC 2022-01-18 14:24:07 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.553° N, 5.242° E Uncertainty ± 0.9 km |
| Event ID | ROB 15215 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-01-20 16:32:24 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
- 10
- Epicentral distance
- 15.6 – 79.7km
- 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: 10 measurements, root-mean-square deviation 0.20 s. S wave: 5 measurements, root-mean-square deviation 0.39 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 | 15.6 | 164 | 13:24:09.92+2.76 s | 13:24:12.13+4.97 s | 2.21 |
| GESGesves | 21.7 | 210 | 13:24:10.83+3.67 s | 13:24:13.75+6.59 s | 2.92 |
| RCHRochefort | 44.3 | 181 | 13:24:15.24+8.08 s | 13:24:21.42+14.26 s | 6.18 |
| MEMHMembach | 54.8 | 83 | 13:24:16.77+9.61 s | – | – |
| OPTBOpitter | 68.1 | 24 | 13:24:18.88+11.72 s | – | – |
| DOUDourbes | 68.7 | 222 | 13:24:19.41+12.25 s | 13:24:27.64+20.48 s | 8.23 |
| KLBKalborn | 79.7 | 129 | 13:24:21.36+14.20 s | – | – |
| Dutch seismic network (KNMI)3 stations | |||||
| VKBValkenburg | 51.8 | 48 | 13:24:15.98+8.82 s | – | – |
| TERZTerziet | 52.1 | 64 | 13:24:16.27+9.11 s | – | – |
| HGNHeimansgroeve | 54.1 | 64 | 13:24:16.47+9.31 s | 13:24:23.54+16.38 s | 7.07 |