PROFONDEVILLE (BE)
Quarry blast20 June 2018
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 10:41:532018-06-20
- UTC
- 08:41:532018-06-20
Main parameters
| Date and time | 2018-06-20 08:41:53 UTC 2018-06-20 10:41:53 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.380° N, 4.851° E Uncertainty ± 2.3 km |
| Event ID | ROB 6795 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-06-20 12:56:11 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
- 10.5 – 60.4km
- Mean velocity, P wave
- 5.6km/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 0.18 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 | 10.5 | 214 | 08:41:55.68+1.89 s | 08:41:57.32+3.53 s | 1.64 |
| GESGesves | 16.8 | 88 | 08:41:56.26+2.47 s | 08:41:58.37+4.58 s | 2.11 |
| CLAClavier | 32.3 | 82 | 08:41:59.24+5.45 s | 08:42:03.77+9.98 s | 4.53 |
| UCCSUccle | 58.0 | 323 | 08:42:03.97+10.18 s | – | – |
| LCHLa Chartreuse | 60.4 | 61 | 08:42:04.36+10.57 s | – | – |
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