FRANC-WARET (BE)
Quarry blast16 January 2017
- Magnitude
- 1.7ML
- Depth
- 1.5km ± 5.7
- Belgian time
- 14:18:582017-01-16
- UTC
- 13:18:582017-01-16
Main parameters
| Date and time | 2017-01-16 13:18:58 UTC 2017-01-16 14:18:58 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.514° N, 4.969° E Uncertainty ± 1.8 km |
| Depth of hypocenter | 1.5 ± 5.7 km |
| Event ID | ROB 5614 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-01-16 14:44:50 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
- 16.6 – 109.0km
- Mean velocity, P wave
- 5.8km/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 1.5 km. P wave: 12 measurements, root-mean-square deviation 0.34 s. S wave: 5 measurements, root-mean-square deviation 0.37 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)12 stations | ||||||
| GESGesves | 16.6 | 150 | 13:19:00.82+2.35 s | 13:19:02.94+4.47 s | 2.12 | – |
| CLAClavier | 25.9 | 114 | 13:19:02.63+4.16 s | – | – | – |
| MRDMaredsous | 27.6 | 211 | 13:19:03.49+5.02 s | 13:19:07.32+8.85 s | 3.83 | – |
| STISart Tilman | 42.8 | 79 | 13:19:06.58+8.11 s | – | – | – |
| RCHRochefort | 43.9 | 155 | 13:19:05.88+7.41 s | 13:19:11.45+12.98 s | 5.57 | – |
| SNFSeneffe | 48.6 | 270 | 13:19:06.48+8.01 s | – | – | – |
| DOUDourbes | 53.7 | 210 | 13:19:07.41+8.94 s | 13:19:14.43+15.96 s | 7.02 | 25.8 |
| RQRRonquières | 53.7 | 281 | 13:19:07.59+9.12 s | – | – | – |
| SKQSteenkerque | 64.8 | 284 | 13:19:09.25+10.78 s | – | – | – |
| MEMHMembach | 74.5 | 81 | 13:19:11.63+13.16 s | – | – | – |
| KLBKalborn | 93.3 | 119 | 13:19:14.48+16.01 s | – | – | – |
| VIAVianden | 109.0 | 126 | 13:19:17.26+18.79 s | 13:19:30.87+32.40 s | 13.61 | – |
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