YVOIR (BE)
Quarry blast5 October 2018
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 16:34:042018-10-05
- UTC
- 14:34:042018-10-05
Main parameters
| Date and time | 2018-10-05 14:34:04 UTC 2018-10-05 16:34:04 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.361° N, 4.881° E Uncertainty ± 2.3 km |
| Event ID | ROB 7215 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-10-05 16:41:49 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
- 5
- Epicentral distance
- 10.4 – 86.5km
- Mean velocity, P wave
- 5.9km/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: 5 measurements, root-mean-square deviation 0.17 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)5 stations | |||||
| MRDMaredsous | 10.4 | 231 | 14:34:06.14+1.91 s | – | – |
| GESGesves | 14.9 | 80 | 14:34:07.19+2.96 s | 14:34:08.98+4.75 s | 1.79 |
| CLAClavier | 30.6 | 78 | 14:34:10.01+5.78 s | 14:34:13.97+9.74 s | 3.96 |
| DOUDourbes | 36.0 | 215 | 14:34:10.89+6.66 s | – | – |
| MRGMont Rigi | 86.5 | 78 | 14:34:19.13+14.90 s | – | – |
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