FERNELMONT (BE)
Quarry blast19 January 2022
- Magnitude
- 1.6ML
- Depth
- 2.0km ± 13.1
- Belgian time
- 14:23:592022-01-19
- UTC
- 13:23:592022-01-19
Main parameters
| Date and time | 2022-01-19 13:23:59 UTC 2022-01-19 14:23:59 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.511° N, 4.974° E Uncertainty ± 1.1 km |
| Depth of hypocenter | 2.0 ± 13.1 km |
| Event ID | ROB 15225 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-01-20 16:34:04 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
- 16.2 – 92.9km
- Mean velocity, P wave
- 5.6km/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. Hypocenter at a depth of 2.0 km. P wave: 9 measurements, root-mean-square deviation 0.34 s. S wave: 5 measurements, root-mean-square deviation 0.30 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 | 16.2 | 150 | 13:24:02.14+2.74 s | 13:24:03.60+4.20 s | 1.46 |
| CLAClavier | 25.4 | 114 | 13:24:03.73+4.33 s | 13:24:06.68+7.28 s | 2.95 |
| TGATangissart | 33.7 | 288 | 13:24:05.07+5.67 s | 13:24:09.41+10.01 s | 4.34 |
| STISart Tilman | 42.5 | 79 | 13:24:07.14+7.74 s | – | – |
| RCHRochefort | 43.5 | 156 | 13:24:06.81+7.41 s | 13:24:12.54+13.14 s | 5.73 |
| DOUDourbes | 53.6 | 210 | 13:24:08.70+9.30 s | – | – |
| MEMHMembach | 74.2 | 81 | 13:24:12.84+13.44 s | – | – |
| KLBKalborn | 92.9 | 119 | 13:24:15.77+16.37 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 73.3 | 67 | 13:24:11.42+12.02 s | 13:24:20.76+21.36 s | 9.34 |
Did you feel an earthquake?The inquiry takes just a few minutes. Every report helps seismologists assess the effects of the earthquake.
Take the inquiry