ANDENNE (BE)
Quarry blast17 May 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 14:23:332022-05-17
- UTC
- 12:23:332022-05-17
Main parameters
| Date and time | 2022-05-17 12:23:33 UTC 2022-05-17 14:23:33 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.500° N, 4.999° E Uncertainty ± 2.5 km |
| Event ID | ROB 16195 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-18 22:29:44 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
- 5
- Epicentral distance
- 14.2 – 73.3km
- Mean velocity, P wave
- 6.1km/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: 5 measurements, root-mean-square deviation 0.20 s. S wave: 4 measurements, root-mean-square deviation 0.29 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)5 stations | |||||
| GESGesves | 14.2 | 154 | 12:23:35.91+2.49 s | 12:23:37.85+4.43 s | 1.94 |
| CLAClavier | 23.3 | 113 | 12:23:37.99+4.57 s | 12:23:41.42+8.00 s | 3.43 |
| MRDMaredsous | 27.4 | 217 | 12:23:38.38+4.96 s | 12:23:42.12+8.70 s | 3.74 |
| RCHRochefort | 41.7 | 157 | 12:23:40.77+7.35 s | 12:23:46.42+13.00 s | 5.65 |
| HOUHouvegnez | 73.3 | 102 | 12:23:45.75+12.33 s | – | – |