WAIMES (BE)
Quarry blast25 May 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 15:18:422022-05-25
- UTC
- 13:18:422022-05-25
Main parameters
| Date and time | 2022-05-25 13:18:42 UTC 2022-05-25 15:18:42 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.418° N, 6.105° E Uncertainty ± 1.4 km |
| Event ID | ROB 16280 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-01 16:35:41 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
- 4
- Epicentral distance
- 10.1 – 35.3km
- Mean velocity, P wave
- 6.1km/s
- Mean velocity, S wave
- 3.3km/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: 4 measurements, root-mean-square deviation 0.20 s. S wave: 4 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 | 10.1 | 225 | 13:18:44.46+1.96 s | 13:18:46.02+3.52 s | 1.56 |
| MRGMont Rigi | 10.6 | 348 | 13:18:44.37+1.87 s | 13:18:46.68+4.18 s | 2.31 |
| MEMHMembach | 22.3 | 342 | 13:18:46.59+4.09 s | 13:18:49.57+7.07 s | 2.98 |
| KLBKalborn | 35.3 | 180 | 13:18:48.92+6.42 s | 13:18:53.51+11.01 s | 4.59 |