GELBRESSEE (BE)
Quarry blast1 June 2017
- Magnitude
- 1.3ML
- Depth
- 7.9km ± 5.7
- Belgian time
- 13:50:432017-06-01
- UTC
- 11:50:432017-06-01
Main parameters
| Date and time | 2017-06-01 11:50:43 UTC 2017-06-01 13:50:43 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.500° N, 4.961° E Uncertainty ± 2.2 km |
| Depth of hypocenter | 7.9 ± 5.7 km |
| Event ID | ROB 5733 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-06-01 14:35:18 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
- 13
- Epicentral distance
- 15.6 – 93.1km
- Mean velocity, P wave
- 6.0km/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. Hypocenter at a depth of 7.9 km. P wave: 13 measurements, root-mean-square deviation 0.68 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)13 stations | ||||||
| GESGesves | 15.6 | 145 | 11:50:45.77+2.27 s | 11:50:47.89+4.39 s | 2.12 | – |
| CLAClavier | 25.8 | 110 | 11:50:47.66+4.16 s | 11:50:51.44+7.94 s | 3.78 | 20.7 |
| MRDMaredsous | 26.0 | 212 | 11:50:48.05+4.55 s | 11:50:52.23+8.73 s | 4.18 | – |
| RCHRochefort | 42.8 | 154 | 11:50:50.83+7.33 s | 11:50:56.95+13.45 s | 6.12 | – |
| STISart Tilman | 43.7 | 78 | 11:50:51.84+8.34 s | 11:50:57.36+13.86 s | 5.52 | – |
| LCHLa Chartreuse | 47.8 | 71 | 11:50:51.87+8.37 s | – | – | – |
| SNFSeneffe | 48.1 | 272 | 11:50:51.64+8.14 s | – | – | – |
| DOUDourbes | 52.1 | 210 | 11:50:51.67+8.17 s | 11:50:59.29+15.79 s | 7.62 | – |
| SKQSteenkerque | 64.6 | 285 | 11:50:52.51+9.01 s | – | – | – |
| BOUBougnies | 73.2 | 261 | 11:50:56.21+12.71 s | – | – | – |
| MEMHMembach | 75.3 | 80 | 11:50:55.89+12.39 s | – | – | – |
| HOUHouvegnez | 75.9 | 102 | 11:50:55.61+12.11 s | 11:51:05.94+22.44 s | 10.33 | – |
| KLBKalborn | 93.1 | 118 | 11:50:59.78+16.28 s | – | – | – |
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