ANDENNE (BE)
Quarry blast6 May 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 13:49:412022-05-06
- UTC
- 11:49:412022-05-06
Main parameters
| Date and time | 2022-05-06 11:49:41 UTC 2022-05-06 13:49:41 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.501° N, 4.993° E Uncertainty ± 1.0 km |
| Event ID | ROB 16120 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-08 13:57:59 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
- 8
- Epicentral distance
- 14.5 – 91.1km
- Mean velocity, P wave
- 5.7km/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: 8 measurements, root-mean-square deviation 0.20 s. S wave: 4 measurements, root-mean-square deviation 0.11 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)7 stations | |||||
| GESGesves | 14.5 | 153 | 11:49:44.41+2.49 s | 11:49:46.44+4.52 s | 2.03 |
| CLAClavier | 23.7 | 112 | 11:49:46.39+4.47 s | 11:49:49.16+7.24 s | 2.77 |
| MRDMaredsous | 27.3 | 216 | 11:49:46.97+5.05 s | 11:49:50.54+8.62 s | 3.57 |
| TGATangissart | 35.3 | 289 | 11:49:48.05+6.13 s | – | – |
| DOUDourbes | 53.3 | 212 | 11:49:51.74+9.82 s | 11:49:58.23+16.31 s | 6.49 |
| HOUHouvegnez | 73.7 | 102 | 11:49:55.00+13.08 s | – | – |
| KLBKalborn | 91.1 | 119 | 11:49:57.87+15.95 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 72.6 | 66 | 11:49:54.52+12.60 s | – | – |