NESSONVAUX (BE)
Quarry blast1 February 2018
- Magnitude
- 1.3ML
- Depth
- 2.0km ± 10.8
- Belgian time
- 16:19:082018-02-01
- UTC
- 15:19:082018-02-01
Main parameters
| Date and time | 2018-02-01 15:19:08 UTC 2018-02-01 16:19:08 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.585° N, 5.725° E Uncertainty ± 1.8 km |
| Depth of hypocenter | 2.0 ± 10.8 km |
| Event ID | ROB 6260 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-02-02 10:17:52 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
- 9
- Epicentral distance
- 10.8 – 97.1km
- 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 2.0 km. P wave: 9 measurements, root-mean-square deviation 0.28 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)9 stations | ||||||
| LCHLa Chartreuse | 10.8 | 304 | 15:19:10.56+1.85 s | – | – | – |
| STISart Tilman | 11.4 | 269 | 15:19:10.18+1.47 s | – | – | – |
| MEMHMembach | 20.4 | 82 | 15:19:12.30+3.59 s | – | – | – |
| EBNEben-Emael | 23.8 | 352 | 15:19:13.24+4.53 s | – | – | – |
| MRGMont Rigi | 26.1 | 108 | 15:19:13.24+4.53 s | – | – | – |
| TNLTernell | 28.7 | 90 | 15:19:13.73+5.02 s | – | – | – |
| CLAClavier | 35.2 | 239 | 15:19:14.32+5.61 s | 15:19:19.49+10.78 s | 5.17 | 17.5 |
| RCHRochefort | 59.5 | 217 | 15:19:19.30+10.59 s | – | – | – |
| DOUDourbes | 97.1 | 236 | 15:19:25.46+16.75 s | – | – | – |
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