NEUPRE (BE)
Quarry blast8 November 2018
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 14:01:232018-11-08
- UTC
- 13:01:232018-11-08
Main parameters
| Date and time | 2018-11-08 13:01:23 UTC 2018-11-08 14:01:23 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.549° N, 5.452° E Uncertainty ± 5.3 km |
| Event ID | ROB 7405 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-11-21 15:28:16 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
- 6
- Epicentral distance
- 14.4 – 64.0km
- Mean velocity, P wave
- 5.4km/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. Depth not determined: hypocenter placed at the surface for the calculation. P wave: 6 measurements, root-mean-square deviation 0.53 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 | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)6 stations | |||||
| LCHLa Chartreuse | 14.4 | 46 | 13:01:25.84+1.99 s | – | – |
| CLAClavier | 18.0 | 216 | 13:01:26.21+2.36 s | – | – |
| GESGesves | 31.7 | 235 | 13:01:30.11+6.26 s | 13:01:35.44+11.59 s | 5.33 |
| MEMHMembach | 40.1 | 80 | 13:01:31.38+7.53 s | – | – |
| MRDMaredsous | 55.8 | 241 | 13:01:33.13+9.28 s | – | – |
| OPTOpitter | 64.0 | 12 | 13:01:35.28+11.43 s | – | – |
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