OLNE (BE)
Quarry blast12 January 2022
- Magnitude
- 1.0ML
- Depth
- –
- Belgian time
- 16:54:472022-01-12
- UTC
- 15:54:472022-01-12
Main parameters
| Date and time | 2022-01-12 15:54:47 UTC 2022-01-12 16:54:47 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.607° N, 5.707° E Uncertainty ± 0.4 km |
| Event ID | ROB 15160 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-01-12 17:22:31 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
- 8.4 – 50.5km
- Mean velocity, P wave
- 5.6km/s
- Mean velocity, S wave
- 3.1km/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 0.14 s. S wave: 5 measurements, root-mean-square deviation 0.24 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 | |||||
| LCHLa Chartreuse | 8.4 | 295 | 15:54:48.58+1.48 s | – | – |
| STISart Tilman | 10.5 | 255 | 15:54:48.86+1.76 s | – | – |
| MEMHMembach | 21.4 | 89 | 15:54:50.82+3.72 s | 15:54:54.30+7.20 s | 3.48 |
| MRGMont Rigi | 28.2 | 112 | 15:54:51.93+4.83 s | 15:54:55.91+8.81 s | 3.98 |
| CLAClavier | 35.6 | 234 | 15:54:53.63+6.53 s | 15:54:58.51+11.41 s | 4.88 |
| GESGesves | 50.5 | 241 | 15:54:56.11+9.01 s | 15:55:03.20+16.10 s | 7.09 |
| Dutch seismic network (KNMI)3 stations | |||||
| TERZTerziet | 21.8 | 40 | 15:54:50.95+3.85 s | – | – |
| HGNHeimansgroeve | 23.6 | 42 | 15:54:51.40+4.30 s | – | – |
| VKBValkenburg | 29.4 | 11 | 15:54:52.61+5.51 s | 15:54:56.89+9.79 s | 4.28 |