ANDENNE (BE)
Quarry blast5 May 2017
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 14:20:302017-05-05
- UTC
- 12:20:302017-05-05
Main parameters
| Date and time | 2017-05-05 12:20:30 UTC 2017-05-05 14:20:30 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.477° N, 5.006° E Uncertainty ± 4.3 km |
| Event ID | ROB 5689 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-05-05 15:33:21 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
- 11
- Epicentral distance
- 11.7 – 76.0km
- Mean velocity, P wave
- 7.8km/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: 11 measurements, root-mean-square deviation 2.67 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)10 stations | |||||
| GESGesves | 11.7 | 150 | 12:20:31.90+1.90 s | 12:20:32.90+2.90 s | 1.00 |
| CLAClavier | 22.0 | 107 | 12:20:33.89+3.89 s | – | – |
| MRDMaredsous | 25.8 | 221 | 12:20:34.38+4.38 s | – | – |
| RCHRochefort | 39.1 | 156 | 12:20:36.82+6.82 s | – | – |
| LCHLa Chartreuse | 45.8 | 67 | 12:20:38.29+8.29 s | – | – |
| DOUDourbes | 51.6 | 215 | 12:20:38.84+8.84 s | 12:20:45.06+15.06 s | 6.22 |
| HOUHouvegnez | 72.3 | 101 | 12:20:42.27+12.27 s | – | – |
| MEMHMembach | 72.7 | 78 | 12:20:42.63+12.63 s | – | – |
| MEMSMembach | 72.7 | 78 | 12:20:42.67+12.67 s | – | – |
| BOUBougnies | 76.0 | 263 | 12:20:33.19+3.19 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 72.9 | 64 | 12:20:42.28+12.28 s | 12:20:51.27+21.27 s | 8.99 |
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