AMEL (BE)
Quarry blast23 February 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 12:53:542022-02-23
- UTC
- 11:53:542022-02-23
Main parameters
| Date and time | 2022-02-23 11:53:54 UTC 2022-02-23 12:53:54 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.393° N, 6.166° E Uncertainty ± 0.9 km |
| Event ID | ROB 15505 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-02-25 18:36:52 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
- 12.3 – 44.5km
- Mean velocity, P wave
- 5.9km/s
- Mean velocity, S wave
- 3.4km/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 0.22 s. S wave: 6 measurements, root-mean-square deviation 0.16 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 | |||||
| HOUHouvegnez | 12.3 | 249 | 11:53:57.18+2.64 s | 11:53:58.78+4.24 s | 1.60 |
| MRGMont Rigi | 14.7 | 334 | 11:53:57.23+2.69 s | 11:53:59.00+4.46 s | 1.77 |
| TNLTernell | 21.6 | 353 | 11:53:58.88+4.34 s | 11:54:01.44+6.90 s | 2.56 |
| MEMHMembach | 26.5 | 335 | 11:53:59.94+5.40 s | 11:54:02.88+8.34 s | 2.94 |
| KLBKalborn | 32.8 | 187 | 11:54:00.67+6.13 s | 11:54:04.49+9.95 s | 3.82 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 44.5 | 338 | 11:54:02.50+7.96 s | 11:54:07.95+13.41 s | 5.45 |