GELBRESSEE (BE)
Quarry blast10 May 2017
- Magnitude
- 1.3ML
- Depth
- 1.8km ± 5.3
- Belgian time
- 14:23:262017-05-10
- UTC
- 12:23:262017-05-10
Main parameters
| Date and time | 2017-05-10 12:23:26 UTC 2017-05-10 14:23:26 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.514° N, 4.964° E Uncertainty ± 1.4 km |
| Depth of hypocenter | 1.8 ± 5.3 km |
| Event ID | ROB 5695 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-05-11 07:46:43 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
- 10
- Epicentral distance
- 16.8 – 93.7km
- Mean velocity, P wave
- 5.7km/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. Hypocenter at a depth of 1.8 km. P wave: 10 measurements, root-mean-square deviation 0.34 s. S wave: 6 measurements, root-mean-square deviation 0.40 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)10 stations | ||||||
| GESGesves | 16.8 | 149 | 12:23:28.73+2.37 s | 12:23:30.91+4.55 s | 2.18 | – |
| CLAClavier | 26.2 | 114 | 12:23:30.92+4.56 s | 12:23:34.21+7.85 s | 3.29 | 22.8 |
| MRDMaredsous | 27.4 | 211 | 12:23:31.03+4.67 s | 12:23:35.21+8.85 s | 4.18 | – |
| RCHRochefort | 44.1 | 155 | 12:23:33.33+6.97 s | – | – | – |
| LCHLa Chartreuse | 47.1 | 73 | 12:23:34.88+8.52 s | 12:23:40.13+13.77 s | 5.25 | – |
| SNFSeneffe | 48.2 | 270 | 12:23:34.57+8.21 s | – | – | – |
| DOUDourbes | 53.5 | 210 | 12:23:36.06+9.70 s | 12:23:42.14+15.78 s | 6.08 | – |
| SKQSteenkerque | 64.4 | 284 | 12:23:37.27+10.91 s | 12:23:45.00+18.64 s | 7.73 | – |
| MEMHMembach | 74.8 | 81 | 12:23:39.71+13.35 s | – | – | – |
| KLBKalborn | 93.7 | 119 | 12:23:42.65+16.29 s | – | – | – |
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