DURBUY (BE)
Quarry blast12 April 2022
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 14:59:482022-04-12
- UTC
- 12:59:482022-04-12
Main parameters
| Date and time | 2022-04-12 12:59:48 UTC 2022-04-12 14:59:48 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.358° N, 5.560° E Uncertainty ± 1.2 km |
| Event ID | ROB 15945 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-04-14 09:27:48 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
- 7
- Epicentral distance
- 19.5 – 48.6km
- Mean velocity, P wave
- 6.1km/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: 7 measurements, root-mean-square deviation 0.41 s. S wave: 7 measurements, root-mean-square deviation 0.32 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)7 stations | |||||
| CLAClavier | 19.5 | 290 | 12:59:51.93+3.21 s | 12:59:55.21+6.49 s | 3.28 |
| HOUHouvegnez | 31.7 | 91 | 12:59:55.09+6.37 s | 12:59:58.58+9.86 s | 3.49 |
| GESGesves | 33.8 | 275 | 12:59:54.75+6.03 s | 12:59:59.51+10.79 s | 4.76 |
| MRGMont Rigi | 40.4 | 65 | 12:59:56.14+7.42 s | 13:00:00.63+11.91 s | 4.49 |
| MEMHMembach | 42.4 | 49 | 12:59:56.30+7.58 s | 13:00:02.24+13.52 s | 5.94 |
| TNLTernell | 47.8 | 58 | 12:59:57.30+8.58 s | 13:00:03.26+14.54 s | 5.96 |
| KLBKalborn | 48.6 | 126 | 12:59:56.60+7.88 s | 13:00:03.94+15.22 s | 7.34 |