GELBRESSEE (BE)
Quarry blast15 February 2017
- Magnitude
- 1.3ML
- Depth
- 9.2km ± 6.2
- Belgian time
- 14:20:022017-02-15
- UTC
- 13:20:022017-02-15
Main parameters
| Date and time | 2017-02-15 13:20:02 UTC 2017-02-15 14:20:02 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.526° N, 4.961° E Uncertainty ± 1.3 km |
| Depth of hypocenter | 9.2 ± 6.2 km |
| Event ID | ROB 5635 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-02-15 14:43:04 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
- 26.9 – 74.9km
- Mean velocity, P wave
- 5.7km/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. Hypocenter at a depth of 9.2 km. P wave: 10 measurements, root-mean-square deviation 0.23 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 | ||||||
| CLAClavier | 26.9 | 116 | 13:20:06.58+4.51 s | – | – | – |
| MRDMaredsous | 28.4 | 209 | 13:20:06.94+4.87 s | 13:20:10.99+8.92 s | 4.05 | – |
| RCHRochefort | 45.3 | 155 | 13:20:09.56+7.49 s | – | – | – |
| LCHLa Chartreuse | 46.9 | 74 | 13:20:10.32+8.25 s | 13:20:15.86+13.79 s | 5.54 | – |
| SNFSeneffe | 48.1 | 268 | 13:20:10.21+8.14 s | – | – | – |
| RQRRonquières | 52.9 | 280 | 13:20:11.33+9.26 s | – | – | – |
| DOUDourbes | 54.5 | 209 | 13:20:11.66+9.59 s | 13:20:18.27+16.20 s | 6.61 | 11.3 |
| EBNEben-Emael | 59.0 | 59 | 13:20:12.58+10.51 s | – | – | – |
| SKQSteenkerque | 63.9 | 283 | 13:20:12.67+10.60 s | – | – | – |
| MEMHMembach | 74.9 | 82 | 13:20:14.87+12.80 s | – | – | – |
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