REBECQ (BE)
Quarry blast5 March 2020
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 12:22:132020-03-05
- UTC
- 11:22:132020-03-05
Main parameters
| Date and time | 2020-03-05 11:22:13 UTC 2020-03-05 12:22:13 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.663° N, 4.168° E Uncertainty ± 0.2 km |
| Event ID | ROB 9435 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-03-10 14:52:24 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
- 6.4 – 25.9km
- 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: 4 measurements, root-mean-square deviation 0.08 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 | 6.4 | 256 | 11:22:15.00+1.34 s | 11:22:15.76+2.10 s | 0.76 |
| RQRRonquières | 7.5 | 147 | 11:22:15.37+1.71 s | – | – |
| UCCBUccle | 20.2 | 42 | 11:22:17.59+3.93 s | 11:22:20.14+6.48 s | 2.55 |
| TGATangissart | 25.9 | 104 | 11:22:18.42+4.76 s | 11:22:21.58+7.92 s | 3.16 |
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