ANDENNE (BE)
Quarry blast23 May 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 14:21:112022-05-23
- UTC
- 12:21:112022-05-23
Main parameters
| Date and time | 2022-05-23 12:21:11 UTC 2022-05-23 14:21:11 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.494° N, 4.988° E Uncertainty ± 1.0 km |
| Event ID | ROB 16245 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-05-24 19:34:34 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
- 14.0 – 52.5km
- 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: 5 measurements, root-mean-square deviation 0.23 s. S wave: 5 measurements, root-mean-square deviation 0.22 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 | 14.0 | 150 | 12:21:14.58+2.69 s | 12:21:16.29+4.40 s | 1.71 |
| CLAClavier | 23.8 | 110 | 12:21:16.54+4.65 s | 12:21:19.47+7.58 s | 2.93 |
| MRDMaredsous | 26.5 | 216 | 12:21:16.90+5.01 s | 12:21:20.48+8.59 s | 3.58 |
| TGATangissart | 35.3 | 291 | 12:21:17.98+6.09 s | 12:21:22.51+10.62 s | 4.53 |
| DOUDourbes | 52.5 | 212 | 12:21:21.62+9.73 s | 12:21:27.65+15.76 s | 6.03 |