ROCHEFORT (BE)
Quarry blast24 June 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 12:30:102022-06-24
- UTC
- 10:30:102022-06-24
Main parameters
| Date and time | 2022-06-24 10:30:10 UTC 2022-06-24 12:30:10 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.158° N, 5.262° E Uncertainty ± 0.3 km |
| Event ID | ROB 16500 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-27 09:46:21 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
- 2.5 – 73.1km
- 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: 7 measurements, root-mean-square deviation 0.09 s. S wave: 4 measurements, root-mean-square deviation 0.29 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 | |||||
| RCHRochefort | 2.5 | 262 | 10:30:11.00+0.45 s | 10:30:11.42+0.87 s | 0.42 |
| GESGesves | 28.2 | 334 | 10:30:15.68+5.13 s | 10:30:19.43+8.88 s | 3.75 |
| CLAClavier | 29.2 | 6 | 10:30:15.72+5.17 s | – | – |
| DOUDourbes | 48.2 | 262 | 10:30:19.08+8.53 s | 10:30:25.82+15.27 s | 6.74 |
| KLBKalborn | 60.9 | 96 | 10:30:21.16+10.61 s | 10:30:28.88+18.33 s | 7.72 |
| MRGMont Rigi | 69.9 | 56 | 10:30:22.68+12.13 s | – | – |
| MEMHMembach | 73.1 | 46 | 10:30:23.23+12.68 s | – | – |