TROOZ (BE)
Quarry blast8 March 2022
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 13:54:382022-03-08
- UTC
- 12:54:382022-03-08
Main parameters
| Date and time | 2022-03-08 12:54:38 UTC 2022-03-08 13:54:38 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.589° N, 5.698° E Uncertainty ± 0.6 km |
| Event ID | ROB 15615 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-03-15 19:58:37 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
- 8
- Epicentral distance
- 9.0 – 33.9km
- Mean velocity, P wave
- 5.6km/s
- Mean velocity, S wave
- 3.0km/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 0.14 s. S wave: 6 measurements, root-mean-square deviation 0.27 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)6 stations | |||||
| LCHLa Chartreuse | 9.0 | 309 | 12:54:39.87+1.56 s | 12:54:41.42+3.11 s | 1.55 |
| STISart Tilman | 9.5 | 266 | 12:54:39.89+1.58 s | – | – |
| MEMHMembach | 22.2 | 84 | 12:54:42.06+3.75 s | 12:54:45.35+7.04 s | 3.29 |
| EBNEben-Emael | 23.2 | 356 | 12:54:42.22+3.91 s | 12:54:46.38+8.07 s | 4.16 |
| MRGMont Rigi | 28.1 | 108 | 12:54:43.28+4.97 s | 12:54:47.52+9.21 s | 4.24 |
| CLAClavier | 33.9 | 236 | 12:54:44.60+6.29 s | – | – |
| Dutch seismic network (KNMI)2 stations | |||||
| HGNHeimansgroeve | 25.5 | 40 | 12:54:42.66+4.35 s | 12:54:46.53+8.22 s | 3.87 |
| VKBValkenburg | 31.5 | 11 | 12:54:43.77+5.46 s | 12:54:49.09+10.78 s | 5.32 |