REBECQ (BE)
Quarry blast17 June 2020
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 11:19:162020-06-17
- UTC
- 09:19:162020-06-17
Main parameters
| Date and time | 2020-06-17 09:19:16 UTC 2020-06-17 11:19:16 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.667° N, 4.158° E Uncertainty ± 1.5 km |
| Event ID | ROB 10280 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-17 12:05:18 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
- 6
- Epicentral distance
- 5.8 – 85.7km
- Mean velocity, P wave
- 5.7km/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: 6 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)6 stations | |||||
| SKQSteenkerque | 5.8 | 250 | 09:19:17.26+1.19 s | 09:19:18.03+1.96 s | 0.77 |
| RQRRonquières | 8.3 | 145 | 09:19:17.63+1.56 s | – | – |
| UCCBUccle | 20.3 | 44 | 09:19:19.92+3.85 s | 09:19:22.60+6.53 s | 2.68 |
| TGATangissart | 26.7 | 105 | 09:19:20.69+4.62 s | 09:19:23.83+7.76 s | 3.14 |
| GESGesves | 73.0 | 115 | 09:19:29.17+13.10 s | – | – |
| CLAClavier | 85.7 | 108 | 09:19:31.19+15.12 s | – | – |
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