LIMBOURG (BE)
Quarry blast28 June 2018
- Magnitude
- 0.9ML
- Depth
- –
- Belgian time
- 12:06:202018-06-28
- UTC
- 10:06:202018-06-28
Main parameters
| Date and time | 2018-06-28 10:06:20 UTC 2018-06-28 12:06:20 Belgian time |
|---|---|
| Magnitude | ML 0.9 |
| Epicentral coordinates | 50.602° N, 5.950° E Uncertainty ± 1.0 km |
| Event ID | ROB 6860 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-07-11 10:58:42 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
- 4.3 – 90.4km
- 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: 8 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)8 stations | |||||
| MEMSMembach | 4.3 | 80 | 10:06:21.25+0.81 s | 10:06:22.03+1.59 s | 0.78 |
| MRGMont Rigi | 13.4 | 139 | 10:06:23.37+2.93 s | 10:06:25.08+4.64 s | 1.71 |
| LCHLa Chartreuse | 25.2 | 280 | 10:06:24.83+4.39 s | – | – |
| HOUHouvegnez | 27.9 | 172 | 10:06:25.38+4.94 s | – | – |
| CLAClavier | 50.3 | 246 | 10:06:29.37+8.93 s | – | – |
| KLBKalborn | 57.0 | 169 | 10:06:30.39+9.95 s | – | – |
| OPTOpitter | 60.9 | 339 | 10:06:30.96+10.52 s | – | – |
| MRDMaredsous | 90.4 | 249 | 10:06:35.90+15.46 s | – | – |
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