LA ROCHE-EN-ARDENNE (BE)
Quarry blast5 June 2018
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 16:23:482018-06-05
- UTC
- 14:23:482018-06-05
Main parameters
| Date and time | 2018-06-05 14:23:48 UTC 2018-06-05 16:23:48 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.203° N, 5.593° E Uncertainty ± 0.7 km |
| Event ID | ROB 6715 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-06-07 16:28:38 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
- 31.8 – 72.3km
- Mean velocity, P wave
- 6.0km/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 0.18 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)8 stations | |||||
| CLAClavier | 31.8 | 319 | 14:23:54.06+5.79 s | 14:23:58.69+10.42 s | 4.63 |
| HOUHouvegnez | 33.8 | 60 | 14:23:54.21+5.94 s | 14:23:58.42+10.15 s | 4.21 |
| KLBKalborn | 38.6 | 107 | 14:23:55.19+6.92 s | 14:23:59.96+11.69 s | 4.77 |
| GESGesves | 41.4 | 300 | 14:23:55.69+7.42 s | – | – |
| MRGMont Rigi | 48.5 | 45 | 14:23:57.15+8.88 s | – | – |
| VIAVianden | 52.8 | 124 | 14:23:57.88+9.61 s | – | – |
| MEMSMembach | 54.0 | 33 | 14:23:57.67+9.40 s | – | – |
| DOUDourbes | 72.3 | 261 | 14:24:00.66+12.39 s | – | – |
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