ANDENNE (BE)
Quarry blast14 April 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 14:18:342022-04-14
- UTC
- 12:18:342022-04-14
Main parameters
| Date and time | 2022-04-14 12:18:34 UTC 2022-04-14 14:18:34 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.469° N, 5.009° E Uncertainty ± 1.1 km |
| Event ID | ROB 15970 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-04-19 13:14:21 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
- 5
- Epicentral distance
- 10.9 – 51.0km
- Mean velocity, P wave
- 5.8km/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: 5 measurements, root-mean-square deviation 0.25 s. S wave: 4 measurements, root-mean-square deviation 0.26 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 | |||||
| GESGesves | 10.9 | 149 | 12:18:36.47+1.80 s | 12:18:38.48+3.81 s | 2.01 |
| CLAClavier | 21.6 | 105 | 12:18:38.54+3.87 s | 12:18:41.81+7.14 s | 3.27 |
| MRDMaredsous | 25.3 | 223 | 12:18:38.91+4.24 s | 12:18:42.75+8.08 s | 3.84 |
| STISart Tilman | 41.4 | 72 | 12:18:42.03+7.36 s | – | – |
| DOUDourbes | 51.0 | 215 | 12:18:44.01+9.34 s | 12:18:50.24+15.57 s | 6.23 |