ANDENNE (BE)
Quarry blast22 November 2022
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 14:24:532022-11-22
- UTC
- 13:24:532022-11-22
Main parameters
| Date and time | 2022-11-22 13:24:53 UTC 2022-11-22 14:24:53 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.489° N, 5.011° E Uncertainty ± 2.6 km |
| Event ID | ROB 17815 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-24 09:13:47 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
- 12.8 – 75.5km
- 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 0.42 s. S wave: 4 measurements, root-mean-square deviation 0.48 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 | 12.8 | 155 | 13:24:55.35+2.20 s | 13:24:57.30+4.15 s | 1.95 |
| CLAClavier | 22.1 | 110 | 13:24:57.64+4.49 s | 13:25:00.68+7.53 s | 3.04 |
| MRDMaredsous | 27.0 | 220 | 13:24:57.71+4.56 s | – | – |
| DOUDourbes | 52.9 | 214 | 13:25:02.68+9.53 s | 13:25:09.30+16.15 s | 6.62 |
| MRGMont Rigi | 75.5 | 88 | 13:25:06.58+13.43 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| TERZTerziet | 70.0 | 64 | 13:25:04.74+11.59 s | 13:25:13.18+20.03 s | 8.44 |