SPRIMONT (BE)
Quarry blast24 May 2022
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 15:00:452022-05-24
- UTC
- 13:00:452022-05-24
Main parameters
| Date and time | 2022-05-24 13:00:45 UTC 2022-05-24 15:00:45 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.496° N, 5.646° E Uncertainty ± 2.5 km |
| Event ID | ROB 16285 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-06-01 16:36:35 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
- 11.3 – 55.0km
- Mean velocity, P wave
- 7.1km/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 1.14 s. S wave: 7 measurements, root-mean-square deviation 0.51 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)8 stations | |||||
| STISart Tilman | 11.3 | 329 | 13:00:47.60+2.51 s | 13:00:49.44+4.35 s | 1.84 |
| LCHLa Chartreuse | 16.3 | 348 | 13:00:48.78+3.69 s | 13:00:51.45+6.36 s | 2.67 |
| CLAClavier | 25.9 | 251 | 13:00:49.37+4.28 s | 13:00:52.73+7.64 s | 3.36 |
| HOUHouvegnez | 30.0 | 122 | 13:00:51.10+6.01 s | 13:00:55.45+10.36 s | 4.35 |
| MRGMont Rigi | 30.5 | 87 | 13:00:49.46+4.37 s | 13:00:55.17+10.08 s | 5.71 |
| TNLTernell | 35.8 | 74 | 13:00:48.99+3.90 s | – | – |
| GESGesves | 41.6 | 253 | 13:00:52.32+7.23 s | 13:00:58.06+12.97 s | 5.74 |
| KLBKalborn | 55.0 | 143 | 13:00:55.38+10.29 s | 13:01:02.01+16.92 s | 6.63 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 36.0 | 34 | 13:00:49.33+4.24 s | – | – |