ANDENNE (BE)
Quarry blast7 February 2019
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 14:14:452019-02-07
- UTC
- 13:14:452019-02-07
Main parameters
| Date and time | 2019-02-07 13:14:45 UTC 2019-02-07 14:14:45 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.497° N, 5.004° E Uncertainty ± 16.2 km |
| Event ID | ROB 7810 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-02-07 15:07:00 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
- 5
- Epicentral distance
- 13.8 – 53.4km
- Mean velocity, P wave
- 2.8km/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: 5 measurements, root-mean-square deviation 1.90 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)5 stations | |||||
| GESGesves | 13.8 | 155 | 13:14:47.66+2.12 s | – | – |
| CLAClavier | 22.9 | 112 | 13:14:49.62+4.08 s | – | – |
| MRDMaredsous | 27.5 | 218 | 13:14:50.37+4.83 s | – | – |
| RCHRochefort | 41.3 | 157 | 13:14:53.12+7.58 s | – | – |
| DOUDourbes | 53.4 | 213 | 13:15:03.04+17.50 s | – | – |
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