DURBUY (BE)
Quarry blast24 January 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 15:39:142022-01-24
- UTC
- 14:39:142022-01-24
Main parameters
| Date and time | 2022-01-24 14:39:14 UTC 2022-01-24 15:39:14 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.370° N, 5.546° E Uncertainty ± 0.4 km |
| Event ID | ROB 15280 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-01-28 13:41:02 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
- 18.2 – 51.7km
- 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 0.17 s. S wave: 6 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)6 stations | |||||
| CLAClavier | 18.2 | 288 | 14:39:18.19+3.53 s | 14:39:20.54+5.88 s | 2.35 |
| HOUHouvegnez | 32.7 | 93 | 14:39:20.28+5.62 s | 14:39:25.53+10.87 s | 5.25 |
| MRGMont Rigi | 40.8 | 67 | 14:39:22.10+7.44 s | 14:39:27.12+12.46 s | 5.02 |
| MEMHMembach | 42.4 | 51 | 14:39:22.22+7.56 s | 14:39:27.53+12.87 s | 5.31 |
| TNLTernell | 48.0 | 60 | 14:39:23.22+8.56 s | 14:39:28.97+14.31 s | 5.75 |
| KLBKalborn | 50.1 | 127 | 14:39:23.61+8.95 s | 14:39:29.79+15.13 s | 6.18 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 51.7 | 32 | 14:39:23.96+9.30 s | – | – |