FERNELMONT (BE)
Quarry blast15 June 2018
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 13:47:492018-06-15
- UTC
- 11:47:492018-06-15
Main parameters
| Date and time | 2018-06-15 11:47:49 UTC 2018-06-15 13:47:49 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.530° N, 4.975° E Uncertainty ± 1.4 km |
| Event ID | ROB 6780 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-06-18 09:12:50 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
- 8
- Epicentral distance
- 18.0 – 93.9km
- Mean velocity, P wave
- 5.8km/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: 8 measurements, root-mean-square deviation 0.25 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)8 stations | |||||
| GESGesves | 18.0 | 154 | 11:47:52.05+2.87 s | – | – |
| CLAClavier | 26.3 | 118 | 11:47:54.04+4.86 s | 11:47:57.54+8.36 s | 3.50 |
| MRDMaredsous | 29.3 | 210 | 11:47:54.53+5.35 s | 11:47:58.21+9.03 s | 3.68 |
| LCHLa Chartreuse | 45.8 | 74 | 11:47:57.31+8.13 s | – | – |
| DOUDourbes | 55.4 | 209 | 11:47:59.38+10.20 s | 11:48:06.51+17.33 s | 7.13 |
| SKQSteenkerque | 64.8 | 282 | 11:48:00.27+11.09 s | – | – |
| MEMSMembach | 73.9 | 83 | 11:48:02.02+12.84 s | – | – |
| KLBKalborn | 93.9 | 120 | 11:48:05.60+16.42 s | – | – |
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