ANDENNE (BE)
Quarry blast15 March 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 14:22:452022-03-15
- UTC
- 13:22:452022-03-15
Main parameters
| Date and time | 2022-03-15 13:22:45 UTC 2022-03-15 14:22:45 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.512° N, 4.983° E Uncertainty ± 1.2 km |
| Event ID | ROB 15625 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-03-16 09:36:33 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
- 15.9 – 54.0km
- 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: 6 measurements, root-mean-square deviation 0.12 s. S wave: 5 measurements, root-mean-square deviation 0.36 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 | |||||
| GESGesves | 15.9 | 152 | 13:22:48.58+2.83 s | 13:22:50.31+4.56 s | 1.73 |
| CLAClavier | 24.9 | 114 | 13:22:50.27+4.52 s | 13:22:53.96+8.21 s | 3.69 |
| MRDMaredsous | 27.9 | 213 | 13:22:51.03+5.28 s | 13:22:54.80+9.05 s | 3.77 |
| TGATangissart | 34.3 | 288 | 13:22:51.83+6.08 s | 13:22:56.20+10.45 s | 4.37 |
| RCHRochefort | 43.3 | 156 | 13:22:53.52+7.77 s | – | – |
| DOUDourbes | 54.0 | 211 | 13:22:55.28+9.53 s | 13:23:02.06+16.31 s | 6.78 |