CONSTHUM (LU)
Quarry blast1 June 2021
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 14:49:162021-06-01
- UTC
- 12:49:162021-06-01
Main parameters
| Date and time | 2021-06-01 12:49:16 UTC 2021-06-01 14:49:16 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 49.986° N, 6.054° E Uncertainty ± 0.9 km |
| Event ID | ROB 13570 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-06-02 08:44:33 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
- 8
- Epicentral distance
- 12.0 – 105.2km
- Mean velocity, P wave
- 5.8km/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: 8 measurements, root-mean-square deviation 0.22 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 | |||||
| VIAVianden | 12.0 | 118 | 12:49:18.77+2.38 s | 12:49:20.64+4.25 s | 1.87 |
| KLBKalborn | 13.3 | 17 | 12:49:19.12+2.73 s | 12:49:20.87+4.48 s | 1.75 |
| HOUHouvegnez | 41.1 | 355 | 12:49:23.79+7.40 s | 12:49:28.54+12.15 s | 4.75 |
| MRGMont Rigi | 58.5 | 1 | 12:49:26.24+9.85 s | – | – |
| TNLTernell | 67.0 | 5 | 12:49:28.27+11.88 s | – | – |
| MEMSMembach | 69.4 | 357 | 12:49:28.85+12.46 s | – | – |
| DOUDourbes | 105.2 | 277 | 12:49:35.00+18.61 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 87.0 | 354 | 12:49:31.61+15.22 s | – | – |
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