WAIMES (BE)
Quarry blast21 June 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 11:07:372022-06-21
- UTC
- 09:07:372022-06-21
Main parameters
| Date and time | 2022-06-21 09:07:37 UTC 2022-06-21 11:07:37 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.409° N, 6.163° E Uncertainty ± 2.0 km |
| Event ID | ROB 16430 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-23 10:44:12 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
- 12.8 – 34.6km
- 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 0.33 s. S wave: 4 measurements, root-mean-square deviation 0.21 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 | 12.8 | 242 | 09:07:40.76+2.91 s | 09:07:42.13+4.28 s | 1.37 |
| MRGMont Rigi | 13.0 | 331 | 09:07:40.17+2.32 s | 09:07:41.98+4.13 s | 1.81 |
| MEMHMembach | 24.8 | 334 | 09:07:42.84+4.99 s | 09:07:46.09+8.24 s | 3.25 |
| KLBKalborn | 34.6 | 186 | 09:07:43.76+5.91 s | 09:07:48.64+10.79 s | 4.88 |