ANDENNE (BE)
Quarry blast13 July 2022
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 13:46:482022-07-13
- UTC
- 11:46:482022-07-13
Main parameters
| Date and time | 2022-07-13 11:46:48 UTC 2022-07-13 13:46:48 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.458° N, 5.029° E Uncertainty ± 4.7 km |
| Event ID | ROB 16600 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-07-21 23:36:05 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
- 4
- Epicentral distance
- 9.0 – 50.8km
- Mean velocity, P wave
- 5.0km/s
- Mean velocity, S wave
- 3.2km/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: 4 measurements, root-mean-square deviation 0.60 s. S wave: 4 measurements, root-mean-square deviation 0.48 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)4 stations | |||||
| GESGesves | 9.0 | 153 | 11:46:49.64+1.32 s | 11:46:51.55+3.23 s | 1.91 |
| CLAClavier | 19.8 | 102 | 11:46:51.82+3.50 s | 11:46:55.06+6.74 s | 3.24 |
| MRDMaredsous | 25.4 | 227 | 11:46:52.33+4.01 s | 11:46:56.21+7.89 s | 3.88 |
| DOUDourbes | 50.8 | 218 | 11:46:59.01+10.69 s | 11:47:03.77+15.45 s | 4.76 |