WELLIN (BE)
Quarry blast12 October 2022
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 14:45:152022-10-12
- UTC
- 12:45:152022-10-12
Main parameters
| Date and time | 2022-10-12 12:45:15 UTC 2022-10-12 14:45:15 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.075° N, 5.139° E Uncertainty ± 3.7 km |
| Event ID | ROB 17355 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-10-14 10:26:49 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
- 11
- Epicentral distance
- 10.9 – 104.9km
- Mean velocity, P wave
- 5.5km/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: 11 measurements, root-mean-square deviation 0.73 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)9 stations | |||||
| RCHRochefort | 10.9 | 35 | 12:45:16.83+1.53 s | – | – |
| GESGesves | 34.7 | 354 | 12:45:21.34+6.04 s | 12:45:25.61+10.31 s | 4.27 |
| MRDMaredsous | 36.6 | 314 | 12:45:21.82+6.52 s | 12:45:26.51+11.21 s | 4.69 |
| DOUDourbes | 39.0 | 274 | 12:45:22.27+6.97 s | 12:45:27.31+12.01 s | 5.04 |
| HOUHouvegnez | 69.2 | 63 | 12:45:27.25+11.95 s | – | – |
| KLBKalborn | 69.5 | 87 | 12:45:26.22+10.92 s | – | – |
| TGATangissart | 73.6 | 324 | 12:45:26.42+11.12 s | – | – |
| MEMHMembach | 85.9 | 46 | 12:45:30.97+15.67 s | – | – |
| SKQSteenkerque | 98.8 | 311 | 12:45:33.49+18.19 s | – | – |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 104.9 | 52 | 12:45:33.71+18.41 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| TERZTerziet | 93.4 | 35 | 12:45:32.25+16.95 s | – | – |
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