SPRIMONT (BE)
Quarry blast30 June 2022
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 15:01:032022-06-30
- UTC
- 13:01:032022-06-30
Main parameters
| Date and time | 2022-06-30 13:01:03 UTC 2022-06-30 15:01:03 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.482° N, 5.607° E Uncertainty ± 2.0 km |
| Event ID | ROB 16545 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2022-07-04 14:16:19 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
- 5
- Epicentral distance
- 22.7 – 38.5km
- Mean velocity, P wave
- 4.7km/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: 5 measurements, root-mean-square deviation 0.11 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)5 stations | |||||
| CLAClavier | 22.7 | 252 | 13:01:07.83+3.94 s | 13:01:10.90+7.01 s | 3.07 |
| HOUHouvegnez | 31.7 | 117 | 13:01:09.87+5.98 s | – | – |
| MEMSMembach | 31.9 | 64 | 13:01:09.88+5.99 s | 13:01:13.57+9.68 s | 3.69 |
| MRGMont Rigi | 33.4 | 84 | 13:01:09.93+6.04 s | 13:01:14.08+10.19 s | 4.15 |
| GESGesves | 38.5 | 254 | 13:01:11.24+7.35 s | – | – |
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