DURBUY (BE)
Quarry blast27 October 2022
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 15:17:322022-10-27
- UTC
- 13:17:322022-10-27
Main parameters
| Date and time | 2022-10-27 13:17:32 UTC 2022-10-27 15:17:32 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.342° N, 5.590° E Uncertainty ± 0.4 km |
| Event ID | ROB 17575 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-11-21 14:34:43 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
- 9
- Epicentral distance
- 29.6 – 76.1km
- Mean velocity, P wave
- 6.0km/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: 9 measurements, root-mean-square deviation 0.15 s. S wave: 7 measurements, root-mean-square deviation 0.17 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 | |||||
| HOUHouvegnez | 29.6 | 87 | 13:17:37.97+5.44 s | 13:17:41.78+9.25 s | 3.81 |
| MRGMont Rigi | 39.3 | 61 | 13:17:39.49+6.96 s | 13:17:44.30+11.77 s | 4.81 |
| MEMHMembach | 42.1 | 45 | 13:17:39.81+7.28 s | 13:17:45.36+12.83 s | 5.55 |
| MEMSMembach | 42.1 | 45 | 13:17:40.01+7.48 s | 13:17:45.40+12.87 s | 5.39 |
| KLBKalborn | 45.8 | 126 | 13:17:41.00+8.47 s | 13:17:46.45+13.92 s | 5.45 |
| TNLTernell | 47.0 | 54 | 13:17:40.80+8.27 s | 13:17:47.19+14.66 s | 6.39 |
| DOUDourbes | 76.1 | 249 | 13:17:45.66+13.13 s | – | – |
| Bensberg seismic network (University of Cologne, Germany)1 station | |||||
| KLLKalltalsperre | 61.4 | 56 | 13:17:43.17+10.64 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| TERZTerziet | 51.3 | 26 | 13:17:41.56+9.03 s | 13:17:48.18+15.65 s | 6.62 |