WAIMES (BE)
Quarry blast2 February 2022
- Magnitude
- 0.5ML
- Depth
- –
- Belgian time
- 13:04:102022-02-02
- UTC
- 12:04:102022-02-02
Main parameters
| Date and time | 2022-02-02 12:04:10 UTC 2022-02-02 13:04:10 Belgian time |
|---|---|
| Magnitude | ML 0.5 |
| Epicentral coordinates | 50.401° N, 6.078° E Uncertainty ± 5.3 km |
| Event ID | ROB 15355 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-02-07 09:24:59 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
- 7.4 – 41.7km
- Mean velocity, P wave
- 5.6km/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 0.27 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 | 7.4 | 225 | 12:04:12.35+1.72 s | 12:04:13.05+2.42 s | 0.70 |
| MRGMont Rigi | 12.2 | 359 | 12:04:13.05+2.42 s | 12:04:14.13+3.50 s | 1.08 |
| MEMSMembach | 23.6 | 348 | 12:04:14.67+4.04 s | – | – |
| MEMHMembach | 23.6 | 348 | 12:04:14.68+4.05 s | 12:04:18.73+8.10 s | 4.05 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 41.7 | 346 | 12:04:18.51+7.88 s | – | – |
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