PHILIPPEVILLE (BE)
Quarry blast8 March 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 15:18:202022-03-08
- UTC
- 14:18:202022-03-08
Main parameters
| Date and time | 2022-03-08 14:18:20 UTC 2022-03-08 15:18:20 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.212° N, 4.515° E Uncertainty ± 1.2 km |
| Event ID | ROB 15610 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-03-15 19:57:25 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
- 14.3 – 60.6km
- Mean velocity, P wave
- 5.4km/s
- Mean velocity, S wave
- 3.2km/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 0.42 s. S wave: 4 measurements, root-mean-square deviation 0.24 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 | |||||
| DOUDourbes | 14.3 | 156 | 14:18:23.51+2.76 s | 14:18:25.57+4.82 s | 2.06 |
| MRDMaredsous | 20.6 | 61 | 14:18:24.10+3.35 s | 14:18:27.15+6.40 s | 3.05 |
| SNFSeneffe | 37.1 | 334 | 14:18:27.31+6.56 s | – | – |
| GESGesves | 45.0 | 65 | 14:18:28.84+8.09 s | 14:18:34.68+13.93 s | 5.84 |
| RCHRochefort | 51.2 | 97 | 14:18:29.69+8.94 s | 14:18:36.41+15.66 s | 6.72 |
| CLAClavier | 60.6 | 67 | 14:18:32.63+11.88 s | – | – |