REBECQ (BE)
Quarry blast9 March 2020
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 14:14:052020-03-09
- UTC
- 13:14:052020-03-09
Main parameters
| Date and time | 2020-03-09 13:14:05 UTC 2020-03-09 14:14:05 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.672° N, 4.170° E Uncertainty ± 2.9 km |
| Event ID | ROB 9420 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-03-09 14:36:00 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
- 6.9 – 70.9km
- Mean velocity, P wave
- 5.5km/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 0.15 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 | 6.9 | 248 | 13:14:07.37+1.46 s | 13:14:07.94+2.03 s | 0.57 |
| RQRRonquières | 8.3 | 152 | 13:14:07.58+1.67 s | – | – |
| UCCSUccle | 19.3 | 44 | 13:14:09.61+3.70 s | – | – |
| UCCBUccle | 19.3 | 44 | 13:14:09.84+3.93 s | – | – |
| TGATangissart | 26.0 | 106 | 13:14:10.54+4.63 s | 13:14:13.17+7.26 s | 2.63 |
| DOUDourbes | 70.9 | 155 | 13:14:18.96+13.05 s | – | – |
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