ANDENNE (BE)
Quarry blast7 September 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 14:20:282022-09-07
- UTC
- 12:20:282022-09-07
Main parameters
| Date and time | 2022-09-07 12:20:28 UTC 2022-09-07 14:20:28 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.464° N, 5.005° E Uncertainty ± 1.7 km |
| Event ID | ROB 17060 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-08 11:43:38 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
- 10.6 – 94.8km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.4km/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 0.53 s. S wave: 6 measurements, root-mean-square deviation 0.36 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 | |||||
| GESGesves | 10.6 | 146 | 12:20:31.03+2.21 s | 12:20:32.49+3.67 s | 1.46 |
| CLAClavier | 21.7 | 103 | 12:20:32.17+3.35 s | 12:20:36.07+7.25 s | 3.90 |
| MRDMaredsous | 24.7 | 223 | 12:20:33.52+4.70 s | 12:20:36.50+7.68 s | 2.98 |
| RCHRochefort | 37.8 | 155 | 12:20:34.59+5.77 s | 12:20:40.58+11.76 s | 5.99 |
| DOUDourbes | 50.4 | 216 | 12:20:38.04+9.22 s | 12:20:43.84+15.02 s | 5.80 |
| MEMSMembach | 73.1 | 77 | 12:20:41.10+12.28 s | 12:20:50.09+21.27 s | 8.99 |
| MRGMont Rigi | 76.1 | 86 | 12:20:42.48+13.66 s | – | – |
| KLBKalborn | 88.5 | 117 | 12:20:45.10+16.28 s | – | – |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 94.8 | 77 | 12:20:45.54+16.72 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 73.6 | 63 | 12:20:41.43+12.61 s | – | – |