DURBUY (BE)
Quarry blast16 April 2018
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 13:23:342018-04-16
- UTC
- 11:23:342018-04-16
Main parameters
| Date and time | 2018-04-16 11:23:34 UTC 2018-04-16 13:23:34 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.371° N, 5.551° E Uncertainty ± 0.7 km |
| Event ID | ROB 6480 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-04-16 15:41:01 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
- 7
- Epicentral distance
- 18.5 – 67.2km
- 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: 7 measurements, root-mean-square deviation 0.15 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)7 stations | |||||
| CLAClavier | 18.5 | 287 | 11:23:37.89+3.36 s | – | – |
| HOUHouvegnez | 32.4 | 93 | 11:23:40.29+5.76 s | 11:23:44.24+9.71 s | 3.95 |
| GESGesves | 33.0 | 273 | 11:23:40.74+6.21 s | 11:23:44.70+10.17 s | 3.96 |
| MRGMont Rigi | 40.4 | 67 | 11:23:41.89+7.36 s | – | – |
| MEMSMembach | 42.0 | 51 | 11:23:42.25+7.72 s | – | – |
| KLBKalborn | 50.0 | 127 | 11:23:43.27+8.74 s | – | – |
| VIAVianden | 67.2 | 136 | 11:23:46.64+12.11 s | – | – |
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