OLNE (BE)
Quarry blast15 June 2022
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 16:29:562022-06-15
- UTC
- 14:29:562022-06-15
Main parameters
| Date and time | 2022-06-15 14:29:56 UTC 2022-06-15 16:29:56 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.567° N, 5.708° E Uncertainty ± 0.9 km |
| Event ID | ROB 16355 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-17 15:32:42 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
- 10.4 – 59.3km
- 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: 7 measurements, root-mean-square deviation 0.10 s. S wave: 5 measurements, root-mean-square deviation 0.44 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 | |||||
| STISart Tilman | 10.4 | 280 | 14:29:58.90+2.18 s | – | – |
| LCHLa Chartreuse | 11.1 | 316 | 14:29:59.18+2.46 s | 14:30:00.11+3.39 s | 0.93 |
| MEMHMembach | 21.9 | 78 | 14:30:01.03+4.31 s | 14:30:03.29+6.57 s | 2.26 |
| MRGMont Rigi | 26.7 | 103 | 14:30:01.74+5.02 s | 14:30:05.06+8.34 s | 3.32 |
| CLAClavier | 33.2 | 240 | 14:30:02.84+6.12 s | – | – |
| KLBKalborn | 59.3 | 151 | 14:30:07.05+10.33 s | 14:30:14.45+17.73 s | 7.40 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 27.0 | 36 | 14:30:01.95+5.23 s | 14:30:05.96+9.24 s | 4.01 |