TROOZ (BE)
Quarry blast17 June 2022
- Magnitude
- 0.9ML
- Depth
- –
- Belgian time
- 11:31:432022-06-17
- UTC
- 09:31:432022-06-17
Main parameters
| Date and time | 2022-06-17 09:31:43 UTC 2022-06-17 11:31:43 Belgian time |
|---|---|
| Magnitude | ML 0.9 |
| Epicentral coordinates | 50.583° N, 5.705° E Uncertainty ± 1.2 km |
| Event ID | ROB 16380 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-17 15:35:26 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
- 9
- Epicentral distance
- 9.7 – 33.9km
- Mean velocity, P wave
- 6.0km/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 0.24 s. S wave: 5 measurements, root-mean-square deviation 0.37 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 | |||||
| LCHLa Chartreuse | 9.7 | 310 | 09:31:44.95+1.70 s | 09:31:46.83+3.58 s | 1.88 |
| STISart Tilman | 10.0 | 270 | 09:31:45.19+1.94 s | – | – |
| MEMHMembach | 21.8 | 82 | 09:31:47.30+4.05 s | 09:31:50.41+7.16 s | 3.11 |
| EBNEben-Emael | 23.9 | 356 | 09:31:47.14+3.89 s | – | – |
| MRGMont Rigi | 27.5 | 107 | 09:31:48.37+5.12 s | 09:31:52.28+9.03 s | 3.91 |
| HOUHouvegnez | 33.2 | 140 | 09:31:49.01+5.76 s | 09:31:53.07+9.82 s | 4.06 |
| CLAClavier | 33.9 | 238 | 09:31:49.66+6.41 s | – | – |
| Dutch seismic network (KNMI)2 stations | |||||
| TERZTerziet | 24.0 | 36 | 09:31:47.63+4.38 s | – | – |
| HGNHeimansgroeve | 25.7 | 39 | 09:31:47.88+4.63 s | 09:31:51.73+8.48 s | 3.85 |