COMBLAIN-AU-PONT (BE)
Quarry blast11 May 2022
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 13:34:422022-05-11
- UTC
- 11:34:422022-05-11
Main parameters
| Date and time | 2022-05-11 11:34:42 UTC 2022-05-11 13:34:42 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.502° N, 5.560° E Uncertainty ± 1.2 km |
| Event ID | ROB 16155 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-13 15:44:24 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
- 9.1 – 82.3km
- Mean velocity, P wave
- 5.6km/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 0.24 s. S wave: 8 measurements, root-mean-square deviation 0.38 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)8 stations | |||||
| STISart Tilman | 9.1 | 2 | 11:34:44.08+1.59 s | 11:34:45.47+2.98 s | 1.39 |
| LCHLa Chartreuse | 15.5 | 10 | 11:34:45.32+2.83 s | 11:34:47.92+5.43 s | 2.60 |
| CLAClavier | 20.5 | 244 | 11:34:45.88+3.39 s | 11:34:48.76+6.27 s | 2.88 |
| MEMHMembach | 34.0 | 69 | 11:34:48.69+6.20 s | 11:34:53.22+10.73 s | 4.53 |
| HOUHouvegnez | 35.6 | 117 | 11:34:48.79+6.30 s | 11:34:53.56+11.07 s | 4.77 |
| GESGesves | 36.0 | 249 | 11:34:48.92+6.43 s | 11:34:53.13+10.64 s | 4.21 |
| KLBKalborn | 59.4 | 139 | 11:34:53.65+11.16 s | 11:34:59.78+17.29 s | 6.13 |
| DOUDourbes | 82.3 | 237 | 11:34:57.48+14.99 s | 11:35:07.40+24.91 s | 9.92 |