ANDENNE (BE)
Quarry blast25 October 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 14:17:582022-10-25
- UTC
- 12:17:582022-10-25
Main parameters
| Date and time | 2022-10-25 12:17:58 UTC 2022-10-25 14:17:58 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.510° N, 4.990° E Uncertainty ± 6.0 km |
| Event ID | ROB 17510 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-10-27 13:08:27 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
- 4
- Epicentral distance
- 15.6 – 54.1km
- Mean velocity, P wave
- 5.9km/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 0.21 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 | 15.6 | 154 | 12:18:01.78+3.31 s | – | – |
| CLAClavier | 24.4 | 114 | 12:18:02.88+4.41 s | 12:18:06.17+7.70 s | 3.29 |
| MRDMaredsous | 28.0 | 214 | 12:18:03.33+4.86 s | 12:18:06.81+8.34 s | 3.48 |
| DOUDourbes | 54.1 | 211 | 12:18:08.13+9.66 s | 12:18:15.12+16.65 s | 6.99 |
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