WAIMES (BE)
Quarry blast24 March 2022
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 15:42:352022-03-24
- UTC
- 14:42:352022-03-24
Main parameters
| Date and time | 2022-03-24 14:42:35 UTC 2022-03-24 15:42:35 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.425° N, 6.088° E Uncertainty ± 0.5 km |
| Event ID | ROB 15730 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-03-25 11:03:51 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
- 13
- Epicentral distance
- 9.7 – 144.5km
- Mean velocity, P wave
- 6.0km/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: 11 measurements, root-mean-square deviation 0.28 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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)12 stations | |||||
| MRGMont Rigi | 9.7 | 354 | 14:42:37.47+1.82 s | – | – |
| HOUHouvegnez | 9.8 | 217 | 14:42:37.53+1.88 s | 14:42:38.66+3.01 s | 1.13 |
| MEMHMembach | 21.3 | 345 | 14:42:39.65+4.00 s | 14:42:42.44+6.79 s | 2.79 |
| MEMSMembach | 21.3 | 345 | 14:42:39.67+4.02 s | – | – |
| KLBKalborn | 36.1 | 178 | 14:42:42.21+6.56 s | – | – |
| VIAVianden | 55.1 | 171 | 14:42:45.33+9.68 s | – | – |
| RCHRochefort | 68.3 | 244 | 14:42:47.62+11.97 s | – | – |
| GESGesves | 71.3 | 267 | 14:42:48.31+12.66 s | – | – |
| MRDMaredsous | 94.9 | 262 | 14:42:52.19+16.54 s | – | – |
| DOUDourbes | 112.6 | 252 | 14:42:54.15+18.50 s | – | – |
| SNFSeneffe | 128.5 | 275 | 14:42:57.33+21.68 s | – | – |
| SKQSteenkerque | 144.5 | 281 | 14:42:59.51+23.86 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 39.4 | 344 | 14:42:42.84+7.19 s | – | – |