ANDENNE (BE)
Quarry blast23 January 2019
- Magnitude
- 2.0ML
- Depth
- –
- Belgian time
- 14:24:032019-01-23
- UTC
- 13:24:032019-01-23
Main parameters
| Date and time | 2019-01-23 13:24:03 UTC 2019-01-23 14:24:03 Belgian time |
|---|---|
| Magnitude | ML 2.0 |
| Epicentral coordinates | 50.490° N, 5.003° E Uncertainty ± 1.1 km |
| Event ID | ROB 7695 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-23 14:38:39 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
- 15
- Epicentral distance
- 13.2 – 76.1km
- Mean velocity, P wave
- 6.0km/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: 15 measurements, root-mean-square deviation 0.21 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)13 stations | |||||
| GESGesves | 13.2 | 153 | 13:24:06.27+2.31 s | – | – |
| CLAClavier | 22.7 | 110 | 13:24:08.33+4.37 s | – | – |
| MRDMaredsous | 26.8 | 219 | 13:24:08.77+4.81 s | – | – |
| RCHRochefort | 40.6 | 157 | 13:24:11.25+7.29 s | – | – |
| LCHLa Chartreuse | 45.4 | 68 | 13:24:12.20+8.24 s | – | – |
| DOUDourbes | 52.7 | 214 | 13:24:13.53+9.57 s | – | – |
| RQRRonquières | 56.6 | 283 | 13:24:13.60+9.64 s | – | – |
| UCCSUccle | 56.8 | 307 | 13:24:14.06+10.10 s | – | – |
| UCCBUccle | 56.8 | 307 | 13:24:14.06+10.10 s | – | – |
| EBNEben-Emael | 58.7 | 54 | 13:24:14.00+10.04 s | – | – |
| BRQBracquegnies | 61.5 | 269 | 13:24:14.28+10.32 s | – | – |
| MEMHMembach | 72.6 | 79 | 13:24:16.42+12.46 s | – | – |
| MRGMont Rigi | 76.1 | 88 | 13:24:17.08+13.12 s | – | – |
| Dutch seismic network (KNMI)2 stations | |||||
| VKBValkenburg | 69.3 | 53 | 13:24:15.72+11.76 s | – | – |
| HGNHeimansgroeve | 72.4 | 65 | 13:24:16.45+12.49 s | – | – |
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