ANDENNE (BE)
Quarry blast15 July 2022
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 13:47:372022-07-15
- UTC
- 11:47:372022-07-15
Main parameters
| Date and time | 2022-07-15 11:47:37 UTC 2022-07-15 13:47:37 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.464° N, 5.003° E Uncertainty ± 3.8 km |
| Event ID | ROB 16615 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-07-21 23:41:33 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
- 6
- Epicentral distance
- 10.6 – 73.7km
- Mean velocity, P wave
- 5.7km/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: 6 measurements, root-mean-square deviation 0.77 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 | 10.6 | 146 | 11:47:39.95+2.64 s | 11:47:40.86+3.55 s | 0.91 |
| CLAClavier | 21.8 | 103 | 11:47:40.59+3.28 s | 11:47:44.04+6.73 s | 3.45 |
| MRDMaredsous | 24.6 | 223 | 11:47:41.25+3.94 s | 11:47:45.40+8.09 s | 4.15 |
| MEMHMembach | 73.1 | 77 | 11:47:50.84+13.53 s | – | – |
| MEMSMembach | 73.1 | 77 | 11:47:50.95+13.64 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 73.7 | 63 | 11:47:49.07+11.76 s | – | – |
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