PHILIPPEVILLE (BE)
Quarry blast29 November 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 16:55:442022-11-29
- UTC
- 15:55:442022-11-29
Main parameters
| Date and time | 2022-11-29 15:55:44 UTC 2022-11-29 16:55:44 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.212° N, 4.565° E Uncertainty ± 1.8 km |
| Event ID | ROB 17910 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-12-02 09:58:02 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
- 13.1 – 111.0km
- Mean velocity, P wave
- 6.1km/s
- Mean velocity, S wave
- 3.5km/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 0.44 s. S wave: 5 measurements, root-mean-square deviation 0.55 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 | 13.1 | 171 | 15:55:47.40+2.41 s | 15:55:49.77+4.78 s | 2.37 |
| MRDMaredsous | 17.6 | 55 | 15:55:47.91+2.92 s | 15:55:50.96+5.97 s | 3.05 |
| SNFSeneffe | 38.9 | 329 | 15:55:52.65+7.66 s | 15:55:56.11+11.12 s | 3.46 |
| GESGesves | 41.9 | 62 | 15:55:52.66+7.67 s | 15:55:58.59+13.60 s | 5.93 |
| HOUHouvegnez | 103.9 | 81 | 15:56:02.45+17.46 s | – | – |
| KLBKalborn | 111.0 | 96 | 15:56:04.16+19.17 s | 15:56:17.20+32.21 s | 13.04 |