ANDENNE (BE)
Quarry blast22 September 2022
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 14:37:002022-09-22
- UTC
- 12:37:002022-09-22
Main parameters
| Date and time | 2022-09-22 12:37:00 UTC 2022-09-22 14:37:00 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.462° N, 5.002° E Uncertainty ± 1.3 km |
| Event ID | ROB 17210 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-26 13:30:27 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
- 9
- Epicentral distance
- 10.5 – 88.6km
- Mean velocity, P wave
- 5.8km/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: 9 measurements, root-mean-square deviation 0.24 s. S wave: 4 measurements, root-mean-square deviation 0.35 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)9 stations | |||||
| GESGesves | 10.5 | 145 | 12:37:02.01+1.74 s | 12:37:03.87+3.60 s | 1.86 |
| CLAClavier | 21.8 | 102 | 12:37:04.03+3.76 s | 12:37:07.48+7.21 s | 3.45 |
| MRDMaredsous | 24.4 | 223 | 12:37:04.39+4.12 s | 12:37:08.33+8.06 s | 3.94 |
| DOUDourbes | 50.1 | 216 | 12:37:09.01+8.74 s | 12:37:15.39+15.12 s | 6.38 |
| HOUHouvegnez | 72.3 | 99 | 12:37:12.85+12.58 s | – | – |
| MEMSMembach | 73.3 | 77 | 12:37:13.27+13.00 s | – | – |
| MEMHMembach | 73.3 | 77 | 12:37:13.27+13.00 s | – | – |
| TNLTernell | 81.2 | 80 | 12:37:14.04+13.77 s | – | – |
| KLBKalborn | 88.6 | 117 | 12:37:16.07+15.80 s | – | – |