ANDENNE (BE)
Quarry blast24 June 2020
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 13:39:282020-06-24
- UTC
- 11:39:282020-06-24
Main parameters
| Date and time | 2020-06-24 11:39:28 UTC 2020-06-24 13:39:28 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.507° N, 4.978° E Uncertainty ± 1.4 km |
| Event ID | ROB 10355 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-25 07:45:14 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
- 8
- Epicentral distance
- 15.6 – 92.4km
- Mean velocity, P wave
- 5.6km/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: 8 measurements, root-mean-square deviation 0.27 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 | 15.6 | 150 | 11:39:31.51+2.55 s | 11:39:33.52+4.56 s | 2.01 |
| CLAClavier | 25.0 | 113 | 11:39:33.49+4.53 s | – | – |
| TGATangissart | 34.1 | 289 | 11:39:35.03+6.07 s | – | – |
| RCHRochefort | 42.9 | 155 | 11:39:36.08+7.12 s | 11:39:41.91+12.95 s | 5.83 |
| DOUDourbes | 53.3 | 211 | 11:39:38.57+9.61 s | – | – |
| UCCBUccle | 54.3 | 307 | 11:39:38.05+9.09 s | – | – |
| KLBKalborn | 92.4 | 119 | 11:39:45.53+16.57 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 73.3 | 67 | 11:39:41.73+12.77 s | – | – |
Did you feel an earthquake?The inquiry takes just a few minutes. Every report helps seismologists assess the effects of the earthquake.
Take the inquiry