REBECQ (BE)
Quarry blast28 June 2021
- Magnitude
- 0.8ML
- Depth
- –
- Belgian time
- 12:31:372021-06-28
- UTC
- 10:31:372021-06-28
Main parameters
| Date and time | 2021-06-28 10:31:37 UTC 2021-06-28 12:31:37 Belgian time |
|---|---|
| Magnitude | ML 0.8 |
| Epicentral coordinates | 50.663° N, 4.163° E Uncertainty ± 0.8 km |
| Event ID | ROB 13845 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2021-07-06 17:01:49 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
- 5
- Epicentral distance
- 6.1 – 26.2km
- Mean velocity, P wave
- 5.9km/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: 5 measurements, root-mean-square deviation 0.14 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 | |||||
| SKQSteenkerque | 6.1 | 255 | 10:31:39.10+1.25 s | 10:31:39.88+2.03 s | 0.78 |
| RQRRonquières | 7.7 | 145 | 10:31:39.36+1.51 s | – | – |
| SNFSeneffe | 19.0 | 153 | 10:31:41.57+3.72 s | – | – |
| UCCBUccle | 20.4 | 43 | 10:31:41.64+3.79 s | – | – |
| TGATangissart | 26.2 | 104 | 10:31:42.39+4.54 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