TROOZ (BE)
Quarry blast18 November 2022
- Magnitude
- 0.5ML
- Depth
- –
- Belgian time
- 11:21:252022-11-18
- UTC
- 10:21:252022-11-18
Main parameters
| Date and time | 2022-11-18 10:21:25 UTC 2022-11-18 11:21:25 Belgian time |
|---|---|
| Magnitude | ML 0.5 |
| Epicentral coordinates | 50.581° N, 5.705° E Uncertainty ± 1.9 km |
| Event ID | ROB 17765 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-21 14:46:57 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
- 6
- Epicentral distance
- 9.9 – 32.3km
- Mean velocity, P wave
- 5.6km/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: 6 measurements, root-mean-square deviation 0.09 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)3 stations | |||||
| LCHLa Chartreuse | 9.9 | 311 | 10:21:27.16+1.86 s | 10:21:28.85+3.55 s | 1.69 |
| MEMHMembach | 21.8 | 82 | 10:21:29.19+3.89 s | – | – |
| MRGMont Rigi | 27.3 | 106 | 10:21:30.44+5.14 s | – | – |
| Dutch seismic network (KNMI)3 stations | |||||
| TERZTerziet | 24.2 | 36 | 10:21:29.63+4.33 s | 10:21:32.96+7.66 s | 3.33 |
| HGNHeimansgroeve | 25.9 | 38 | 10:21:29.98+4.68 s | – | – |
| VKBValkenburg | 32.3 | 10 | 10:21:31.13+5.83 s | – | – |
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