COMBLAIN-AU-PONT (BE)
Quarry blast30 May 2022
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 14:29:262022-05-30
- UTC
- 12:29:262022-05-30
Main parameters
| Date and time | 2022-05-30 12:29:26 UTC 2022-05-30 14:29:26 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.506° N, 5.558° E Uncertainty ± 0.8 km |
| Event ID | ROB 16270 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-01 16:33:36 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
- 8.6 – 41.5km
- Mean velocity, P wave
- 5.7km/s
- Mean velocity, S wave
- 3.2km/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: 8 measurements, root-mean-square deviation 0.26 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 | |||||
| STISart Tilman | 8.6 | 3 | 12:29:28.24+1.49 s | 12:29:29.82+3.07 s | 1.58 |
| CLAClavier | 20.6 | 242 | 12:29:29.93+3.18 s | 12:29:33.21+6.46 s | 3.28 |
| MEMHMembach | 34.0 | 70 | 12:29:32.84+6.09 s | 12:29:37.50+10.75 s | 4.66 |
| HOUHouvegnez | 36.0 | 118 | 12:29:33.19+6.44 s | 12:29:37.96+11.21 s | 4.77 |
| GESGesves | 36.1 | 248 | 12:29:33.30+6.55 s | 12:29:38.48+11.73 s | 5.18 |
| MRGMont Rigi | 36.7 | 89 | 12:29:33.19+6.44 s | 12:29:38.15+11.40 s | 4.96 |
| TNLTernell | 41.5 | 77 | 12:29:33.97+7.22 s | 12:29:39.94+13.19 s | 5.97 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 39.0 | 43 | 12:29:33.71+6.96 s | 12:29:38.53+11.78 s | 4.82 |