COMBLAIN-AU-PONT (BE)
Quarry blast7 October 2022
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 13:08:162022-10-07
- UTC
- 11:08:162022-10-07
Main parameters
| Date and time | 2022-10-07 11:08:16 UTC 2022-10-07 13:08:16 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.498° N, 5.557° E Uncertainty ± 0.6 km |
| Event ID | ROB 17320 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-10-11 11:20:47 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
- 10
- Epicentral distance
- 16.0 – 59.2km
- Mean velocity, P wave
- 5.9km/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: 10 measurements, root-mean-square deviation 0.27 s. S wave: 10 measurements, root-mean-square deviation 0.33 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 | |||||
| LCHLa Chartreuse | 16.0 | 11 | 11:08:19.67+3.01 s | 11:08:21.93+5.27 s | 2.26 |
| CLAClavier | 20.1 | 244 | 11:08:19.87+3.21 s | 11:08:23.47+6.81 s | 3.60 |
| MEMSMembach | 34.4 | 69 | 11:08:22.90+6.24 s | 11:08:27.80+11.14 s | 4.90 |
| HOUHouvegnez | 35.6 | 116 | 11:08:23.03+6.37 s | 11:08:27.16+10.50 s | 4.13 |
| GESGesves | 35.7 | 250 | 11:08:22.81+6.15 s | 11:08:27.66+11.00 s | 4.85 |
| MRGMont Rigi | 36.8 | 87 | 11:08:23.25+6.59 s | 11:08:28.11+11.45 s | 4.86 |
| RCHRochefort | 44.8 | 212 | 11:08:24.61+7.95 s | 11:08:30.43+13.77 s | 5.82 |
| KLBKalborn | 59.2 | 138 | 11:08:27.61+10.95 s | 11:08:34.20+17.54 s | 6.59 |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 56.0 | 72 | 11:08:26.45+9.79 s | 11:08:33.70+17.04 s | 7.25 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 39.8 | 42 | 11:08:23.95+7.29 s | 11:08:29.25+12.59 s | 5.30 |