ANDENNE (BE)
Quarry blast19 March 2019
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 14:21:492019-03-19
- UTC
- 13:21:492019-03-19
Main parameters
| Date and time | 2019-03-19 13:21:49 UTC 2019-03-19 14:21:49 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.455° N, 5.016° E Uncertainty ± 2.9 km |
| Event ID | ROB 7970 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-03-19 15:35:36 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
- 9.3 – 87.3km
- Mean velocity, P wave
- 5.8km/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: 6 measurements, root-mean-square deviation 0.19 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 | 9.3 | 147 | 13:21:50.95+1.59 s | – | – |
| CLAClavier | 20.7 | 101 | 13:21:53.01+3.65 s | – | – |
| RCHRochefort | 36.6 | 156 | 13:21:56.01+6.65 s | – | – |
| MEMHMembach | 72.5 | 76 | 13:22:01.94+12.58 s | 13:22:11.18+21.82 s | 9.24 |
| KLBKalborn | 87.3 | 116 | 13:22:04.73+15.37 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 73.4 | 62 | 13:22:01.80+12.44 s | – | – |
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