WAIMES (BE)
Quarry blast12 September 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 12:21:272022-09-12
- UTC
- 10:21:272022-09-12
Main parameters
| Date and time | 2022-09-12 10:21:27 UTC 2022-09-12 12:21:27 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.425° N, 6.087° E Uncertainty ± 0.8 km |
| Event ID | ROB 17100 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-13 12:12:48 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
- 9.6 – 36.2km
- Mean velocity, P wave
- 5.5km/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 0.07 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 | |||||
| MRGMont Rigi | 9.6 | 355 | 10:21:28.82+1.75 s | – | – |
| HOUHouvegnez | 9.8 | 217 | 10:21:28.89+1.82 s | 10:21:30.41+3.34 s | 1.52 |
| MEMSMembach | 21.2 | 345 | 10:21:31.13+4.06 s | 10:21:34.24+7.17 s | 3.11 |
| KLBKalborn | 36.2 | 178 | 10:21:33.66+6.59 s | – | – |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 29.4 | 33 | 10:21:32.48+5.41 s | 10:21:36.37+9.30 s | 3.89 |
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