DURBUY (BE)
Quarry blast19 September 2022
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 15:05:302022-09-19
- UTC
- 13:05:302022-09-19
Main parameters
| Date and time | 2022-09-19 13:05:30 UTC 2022-09-19 15:05:30 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.383° N, 5.567° E Uncertainty ± 1.5 km |
| Event ID | ROB 17170 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-09-26 13:28:17 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
- 6
- Epicentral distance
- 19.2 – 49.9km
- Mean velocity, P wave
- 5.8km/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: 6 measurements, root-mean-square deviation 0.46 s. S wave: 4 measurements, root-mean-square deviation 0.09 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 | 19.2 | 282 | 13:05:34.19+3.32 s | 13:05:37.01+6.14 s | 2.82 |
| HOUHouvegnez | 31.3 | 96 | 13:05:36.81+5.94 s | 13:05:40.55+9.68 s | 3.74 |
| GESGesves | 34.1 | 271 | 13:05:37.03+6.16 s | 13:05:41.62+10.75 s | 4.59 |
| MRGMont Rigi | 38.8 | 68 | 13:05:36.89+6.02 s | 13:05:42.90+12.03 s | 6.01 |
| MEMHMembach | 40.3 | 51 | 13:05:38.60+7.73 s | – | – |
| KLBKalborn | 49.9 | 129 | 13:05:39.63+8.76 s | – | – |