UERZIG (DE)
Quarry blast7 November 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 12:50:412022-11-07
- UTC
- 11:50:412022-11-07
Main parameters
| Date and time | 2022-11-07 11:50:41 UTC 2022-11-07 12:50:41 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 49.991° N, 6.967° E Uncertainty ± 4.8 km |
| Event ID | ROB 17660 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-21 14:40:03 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
- 12
- Epicentral distance
- 55.2 – 170.3km
- Mean velocity, P wave
- 6.1km/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 0.28 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)9 stations | |||||
| VIAVianden | 55.2 | 264 | 11:50:51.41+10.02 s | – | – |
| KLBKalborn | 62.6 | 281 | 11:50:52.05+10.66 s | 11:50:59.06+17.67 s | 7.01 |
| HOUHouvegnez | 79.7 | 301 | 11:50:55.94+14.55 s | – | – |
| MRGMont Rigi | 85.9 | 313 | 11:50:56.40+15.01 s | – | – |
| TNLTernell | 89.1 | 318 | 11:50:56.73+15.34 s | – | – |
| MEMSMembach | 96.8 | 316 | 11:50:58.06+16.67 s | 11:51:09.25+27.86 s | 11.19 |
| MEMHMembach | 96.8 | 316 | 11:50:58.08+16.69 s | – | – |
| MRDMaredsous | 160.9 | 283 | 11:51:06.80+25.41 s | – | – |
| DOUDourbes | 170.3 | 275 | 11:51:09.77+28.38 s | 11:51:29.21+47.82 s | 19.44 |
| Dutch seismic network (KNMI)2 stations | |||||
| HGNHeimansgroeve | 113.2 | 320 | 11:51:00.76+19.37 s | – | – |
| TERZTerziet | 113.8 | 319 | 11:51:00.76+19.37 s | – | – |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 86.6 | 328 | 11:50:56.76+15.37 s | – | – |