TROOZ (BE)
Quarry blast23 November 2022
- Magnitude
- 0.8ML
- Depth
- –
- Belgian time
- 11:58:552022-11-23
- UTC
- 10:58:552022-11-23
Main parameters
| Date and time | 2022-11-23 10:58:55 UTC 2022-11-23 11:58:55 Belgian time |
|---|---|
| Magnitude | ML 0.8 |
| Epicentral coordinates | 50.587° N, 5.694° E Uncertainty ± 0.7 km |
| Event ID | ROB 17830 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-24 09:14:17 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
- 8.9 – 31.8km
- 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: 8 measurements, root-mean-square deviation 0.11 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)5 stations | |||||
| LCHLa Chartreuse | 8.9 | 311 | 10:58:57.17+1.82 s | – | – |
| STISart Tilman | 9.2 | 267 | 10:58:57.15+1.80 s | – | – |
| MEMHMembach | 22.5 | 84 | 10:58:59.37+4.02 s | 10:59:02.21+6.86 s | 2.84 |
| MEMSMembach | 22.5 | 84 | 10:58:59.39+4.04 s | – | – |
| MRGMont Rigi | 28.3 | 107 | 10:59:00.71+5.36 s | 10:59:04.31+8.96 s | 3.60 |
| Dutch seismic network (KNMI)3 stations | |||||
| TERZTerziet | 24.1 | 38 | 10:58:59.72+4.37 s | 10:59:02.94+7.59 s | 3.22 |
| HGNHeimansgroeve | 25.9 | 40 | 10:59:00.07+4.72 s | 10:59:03.40+8.05 s | 3.33 |
| VKBValkenburg | 31.8 | 12 | 10:59:01.32+5.97 s | 10:59:05.34+9.99 s | 4.02 |
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