NESSONVAUX (BE)
Quarry blast26 January 2017
- Magnitude
- 1.7ML
- Depth
- 5.8km ± 7.7
- Belgian time
- 13:52:562017-01-26
- UTC
- 12:52:562017-01-26
Main parameters
| Date and time | 2017-01-26 12:52:56 UTC 2017-01-26 13:52:56 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.579° N, 5.741° E Uncertainty ± 2.1 km |
| Depth of hypocenter | 5.8 ± 7.7 km |
| Event ID | ROB 5620 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-01-27 08:11:14 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
- 11
- Epicentral distance
- 12.1 – 117.8km
- Mean velocity, P wave
- 5.7km/s
- Mean velocity, S wave
- 3.0km/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 5.8 km. P wave: 11 measurements, root-mean-square deviation 0.65 s. S wave: 7 measurements, root-mean-square deviation 0.52 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)11 stations | ||||||
| LCHLa Chartreuse | 12.1 | 303 | 12:52:58.25+1.54 s | 12:53:00.56+3.85 s | 2.31 | – |
| STISart Tilman | 12.6 | 272 | 12:52:58.39+1.68 s | – | – | – |
| MEMSMembach | 19.3 | 80 | 12:53:00.26+3.55 s | 12:53:03.36+6.65 s | 3.10 | – |
| EBNEben-Emael | 24.6 | 350 | 12:53:00.72+4.01 s | 12:53:04.02+7.31 s | 3.30 | – |
| TNLTernell | 27.5 | 88 | 12:53:01.81+5.10 s | 12:53:05.84+9.13 s | 4.03 | – |
| HOUHouvegnez | 31.3 | 143 | 12:52:59.90+3.19 s | – | – | – |
| CLAClavier | 35.9 | 240 | 12:53:02.87+6.16 s | 12:53:07.81+11.10 s | 4.94 | 40.3 |
| GESGesves | 51.2 | 245 | 12:53:05.61+8.90 s | 12:53:12.19+15.48 s | 6.58 | – |
| KLBKalborn | 59.4 | 154 | 12:53:06.93+10.22 s | – | – | – |
| MRDMaredsous | 75.7 | 246 | 12:53:09.45+12.74 s | 12:53:21.62+24.91 s | 12.17 | – |
| SKQSteenkerque | 117.8 | 274 | 12:53:16.83+20.12 s | – | – | – |
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