ANDENNE (BE)
Quarry blast15 February 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 14:19:182022-02-15
- UTC
- 13:19:182022-02-15
Main parameters
| Date and time | 2022-02-15 13:19:18 UTC 2022-02-15 14:19:18 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.509° N, 4.991° E Uncertainty ± 1.4 km |
| Event ID | ROB 15480 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-02-16 18:54:53 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
- 7
- Epicentral distance
- 15.4 – 91.7km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.4km/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: 7 measurements, root-mean-square deviation 0.34 s. S wave: 7 measurements, root-mean-square deviation 0.45 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 | |||||
| GESGesves | 15.4 | 154 | 13:19:20.28+2.07 s | 13:19:22.81+4.60 s | 2.53 |
| CLAClavier | 24.3 | 114 | 13:19:22.51+4.30 s | 13:19:26.12+7.91 s | 3.61 |
| MRDMaredsous | 27.9 | 215 | 13:19:23.21+5.00 s | 13:19:27.22+9.01 s | 4.01 |
| TGATangissart | 34.9 | 288 | 13:19:24.30+6.09 s | 13:19:29.02+10.81 s | 4.72 |
| RCHRochefort | 42.8 | 157 | 13:19:25.94+7.73 s | 13:19:31.97+13.76 s | 6.03 |
| DOUDourbes | 54.0 | 212 | 13:19:27.93+9.72 s | 13:19:34.23+16.02 s | 6.30 |
| KLBKalborn | 91.7 | 119 | 13:19:34.49+16.28 s | 13:19:45.27+27.06 s | 10.78 |