NICKENICH (DE)
Quarry blast16 September 2022
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 11:48:142022-09-16
- UTC
- 09:48:142022-09-16
Main parameters
| Date and time | 2022-09-16 09:48:14 UTC 2022-09-16 11:48:14 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.421° N, 7.354° E Uncertainty ± 3.6 km |
| Event ID | ROB 17150 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-26 13:27:27 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
- 7
- Epicentral distance
- 78.1 – 145.8km
- Mean velocity, P wave
- 6.2km/s
- Mean velocity, S wave
- 3.5km/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: 6 measurements, root-mean-square deviation 0.63 s. S wave: 4 measurements, root-mean-square deviation 0.30 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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)5 stations | |||||
| TNLTernell | 88.7 | 282 | 09:48:29.62+15.10 s | – | – |
| KLBKalborn | 95.7 | 249 | 09:48:29.42+14.90 s | 09:48:42.60+28.08 s | 13.18 |
| HOUHouvegnez | 96.2 | 266 | 09:48:31.48+16.96 s | 09:48:43.13+28.61 s | 11.65 |
| MEMSMembach | 97.6 | 283 | 09:48:31.06+16.54 s | – | – |
| CLAClavier | 145.8 | 271 | 09:48:38.86+24.34 s | 09:48:56.31+41.79 s | 17.45 |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 78.1 | 289 | 09:48:27.35+12.83 s | 09:48:38.18+23.66 s | 10.83 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 107.7 | 291 | 09:48:32.88+18.36 s | 09:48:46.01+31.49 s | 13.13 |