WAIMES (BE)
Quarry blast23 September 2022
- Magnitude
- 0.6ML
- Depth
- –
- Belgian time
- 12:00:012022-09-23
- UTC
- 10:00:012022-09-23
Main parameters
| Date and time | 2022-09-23 10:00:01 UTC 2022-09-23 12:00:01 Belgian time |
|---|---|
| Magnitude | ML 0.6 |
| Epicentral coordinates | 50.403° N, 6.106° E Uncertainty ± 1.9 km |
| Event ID | ROB 17215 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-26 13:30:36 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
- 9.0 – 42.0km
- 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 0.03 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 | |||||
| HOUHouvegnez | 9.0 | 233 | 10:00:03.07+1.77 s | 10:00:04.43+3.13 s | 1.36 |
| MRGMont Rigi | 12.2 | 350 | 10:00:03.65+2.35 s | 10:00:05.53+4.23 s | 1.88 |
| TNLTernell | 20.4 | 5 | 10:00:05.08+3.78 s | – | – |
| MEMHMembach | 23.9 | 344 | 10:00:05.80+4.50 s | 10:00:06.81+5.51 s | 1.01 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 42.0 | 343 | 10:00:09.07+7.77 s | – | – |
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