ANDENNE (BE)
Quarry blast28 March 2018
- Magnitude
- 2.0ML
- Depth
- –
- Belgian time
- 14:18:312018-03-28
- UTC
- 12:18:312018-03-28
Main parameters
| Date and time | 2018-03-28 12:18:31 UTC 2018-03-28 14:18:31 Belgian time |
|---|---|
| Magnitude | ML 2.0 |
| Epicentral coordinates | 50.466° N, 4.990° E Uncertainty ± 2.3 km |
| Event ID | ROB 6450 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-03-29 11:02:38 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
- 6
- Epicentral distance
- 11.3 – 89.5km
- Mean velocity, P wave
- 5.7km/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: 6 measurements, root-mean-square deviation 0.12 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)6 stations | |||||
| GESGesves | 11.3 | 143 | 12:18:33.32+1.97 s | – | – |
| MRDMaredsous | 24.1 | 221 | 12:18:35.54+4.19 s | – | – |
| LCHLa Chartreuse | 47.2 | 66 | 12:18:39.76+8.41 s | – | – |
| DOUDourbes | 50.0 | 215 | 12:18:40.34+8.99 s | – | – |
| HOUHouvegnez | 73.2 | 99 | 12:18:44.05+12.70 s | – | – |
| KLBKalborn | 89.5 | 117 | 12:18:47.15+15.80 s | – | – |
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