REBECQ (BE)
Quarry blast28 May 2020
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 13:15:082020-05-28
- UTC
- 11:15:082020-05-28
Main parameters
| Date and time | 2020-05-28 11:15:08 UTC 2020-05-28 13:15:08 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.664° N, 4.174° E Uncertainty ± 0.6 km |
| Event ID | ROB 10130 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-05-28 13:38:56 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
- 4
- Epicentral distance
- 6.8 – 25.5km
- 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: 4 measurements, root-mean-square deviation 0.12 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)4 stations | |||||
| SKQSteenkerque | 6.8 | 256 | 11:15:10.16+1.39 s | 11:15:10.97+2.20 s | 0.81 |
| RQRRonquières | 7.4 | 151 | 11:15:10.43+1.66 s | – | – |
| UCCBUccle | 19.8 | 42 | 11:15:12.75+3.98 s | 11:15:15.13+6.36 s | 2.38 |
| TGATangissart | 25.5 | 105 | 11:15:13.47+4.70 s | 11:15:16.26+7.49 s | 2.79 |
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