ANDENNE (BE)
Quarry blast6 May 2019
- Magnitude
- 1.7ML
- Depth
- –
- Belgian time
- 14:12:362019-05-06
- UTC
- 12:12:362019-05-06
Main parameters
| Date and time | 2019-05-06 12:12:36 UTC 2019-05-06 14:12:36 Belgian time |
|---|---|
| Magnitude | ML 1.7 |
| Epicentral coordinates | 50.487° N, 4.991° E Uncertainty ± 1.2 km |
| Event ID | ROB 8115 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-05-06 14:38:59 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
- 13.3 – 90.6km
- Mean velocity, P wave
- 5.5km/s
- Mean velocity, S wave
- 3.0km/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: 7 measurements, root-mean-square deviation 0.53 s. S wave: 6 measurements, root-mean-square deviation 0.97 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 | |||||
| GESGesves | 13.3 | 149 | 12:12:38.73+2.31 s | 12:12:40.47+4.05 s | 1.74 |
| CLAClavier | 23.4 | 109 | 12:12:40.82+4.40 s | 12:12:43.87+7.45 s | 3.05 |
| MRDMaredsous | 26.0 | 218 | 12:12:41.31+4.89 s | 12:12:44.67+8.25 s | 3.36 |
| DOUDourbes | 52.0 | 213 | 12:12:46.03+9.61 s | 12:12:52.42+16.00 s | 6.39 |
| UCCBUccle | 56.4 | 308 | 12:12:46.39+9.97 s | 12:12:53.32+16.90 s | 6.93 |
| SKQSteenkerque | 67.0 | 286 | 12:12:47.17+10.75 s | – | – |
| KLBKalborn | 90.6 | 118 | 12:12:52.42+16.00 s | 12:13:07.77+31.35 s | 15.35 |