REBECQ (BE)
Quarry blast19 June 2020
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 13:29:222020-06-19
- UTC
- 11:29:222020-06-19
Main parameters
| Date and time | 2020-06-19 11:29:22 UTC 2020-06-19 13:29:22 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.669° N, 4.154° E Uncertainty ± 1.1 km |
| Event ID | ROB 10305 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-19 13:48:28 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
- 5.7 – 86.0km
- Mean velocity, P wave
- 5.8km/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: 5 measurements, root-mean-square deviation 0.17 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 | 5.7 | 247 | 11:29:23.68+1.20 s | 11:29:24.51+2.03 s | 0.83 |
| RQRRonquières | 8.6 | 145 | 11:29:23.97+1.49 s | – | – |
| UCCBUccle | 20.3 | 46 | 11:29:26.18+3.70 s | 11:29:29.10+6.62 s | 2.92 |
| GESGesves | 73.3 | 115 | 11:29:35.53+13.05 s | – | – |
| CLAClavier | 86.0 | 108 | 11:29:37.23+14.75 s | – | – |
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