SPRIMONT (BE)
Quarry blast13 June 2019
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 16:02:182019-06-13
- UTC
- 14:02:182019-06-13
Main parameters
| Date and time | 2019-06-13 14:02:18 UTC 2019-06-13 16:02:18 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.500° N, 5.618° E Uncertainty ± 0.8 km |
| Event ID | ROB 8255 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-06-13 19:32:00 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
- 12
- Epicentral distance
- 15.5 – 85.7km
- Mean velocity, P wave
- 5.6km/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: 12 measurements, root-mean-square deviation 0.57 s. S wave: 10 measurements, root-mean-square deviation 0.46 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)10 stations | |||||
| LCHLa Chartreuse | 15.5 | 355 | 14:02:19.95+1.15 s | 14:02:23.75+4.95 s | 3.80 |
| CLAClavier | 24.2 | 248 | 14:02:22.43+3.63 s | 14:02:26.17+7.37 s | 3.74 |
| MEMHMembach | 30.3 | 66 | 14:02:24.40+5.60 s | 14:02:28.10+9.30 s | 3.70 |
| MEMSMembach | 30.3 | 66 | 14:02:24.48+5.68 s | – | – |
| MRGMont Rigi | 32.4 | 88 | 14:02:24.02+5.22 s | 14:02:28.82+10.02 s | 4.80 |
| EBNEben-Emael | 33.3 | 7 | 14:02:24.98+6.18 s | 14:02:29.77+10.97 s | 4.79 |
| GESGesves | 39.8 | 252 | 14:02:24.98+6.18 s | 14:02:31.33+12.53 s | 6.35 |
| KLBKalborn | 56.6 | 142 | 14:02:29.14+10.34 s | 14:02:35.63+16.83 s | 6.49 |
| MRDMaredsous | 64.3 | 250 | 14:02:30.37+11.57 s | – | – |
| DOUDourbes | 85.7 | 239 | 14:02:34.14+15.34 s | 14:02:44.16+25.36 s | 10.02 |
| Dutch seismic network (KNMI)2 stations | |||||
| HGNHeimansgroeve | 36.8 | 37 | 14:02:25.24+6.44 s | 14:02:30.27+11.47 s | 5.03 |
| VKBValkenburg | 42.5 | 16 | 14:02:26.23+7.43 s | 14:02:31.39+12.59 s | 5.16 |