COMBLAIN-AU-PONT (BE)
Quarry blast29 July 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 13:14:042022-07-29
- UTC
- 11:14:042022-07-29
Main parameters
| Date and time | 2022-07-29 11:14:04 UTC 2022-07-29 13:14:04 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.498° N, 5.558° E Uncertainty ± 0.8 km |
| Event ID | ROB 16720 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-08-08 11:31:00 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
- 9.4 – 60.2km
- Mean velocity, P wave
- 5.8km/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: 11 measurements, root-mean-square deviation 0.31 s. S wave: 6 measurements, root-mean-square deviation 0.34 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)10 stations | |||||
| STISart Tilman | 9.4 | 3 | 11:14:06.22+1.67 s | – | – |
| CLAClavier | 20.2 | 244 | 11:14:07.65+3.10 s | 11:14:11.09+6.54 s | 3.44 |
| EBNEben-Emael | 34.3 | 14 | 11:14:10.74+6.19 s | – | – |
| MEMHMembach | 34.3 | 69 | 11:14:10.56+6.01 s | 11:14:15.47+10.92 s | 4.91 |
| HOUHouvegnez | 35.6 | 117 | 11:14:11.06+6.51 s | 11:14:15.41+10.86 s | 4.35 |
| GESGesves | 35.7 | 250 | 11:14:10.86+6.31 s | 11:14:15.96+11.41 s | 5.10 |
| TNLTernell | 41.7 | 76 | 11:14:11.94+7.39 s | 11:14:17.65+13.10 s | 5.71 |
| RCHRochefort | 44.9 | 212 | 11:14:12.52+7.97 s | – | – |
| KLBKalborn | 59.2 | 138 | 11:14:15.29+10.74 s | 11:14:22.09+17.54 s | 6.80 |
| MRDMaredsous | 60.2 | 249 | 11:14:14.85+10.30 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 39.7 | 42 | 11:14:12.23+7.68 s | – | – |