REBECQ (BE)
Quarry blast12 March 2020
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 14:57:372020-03-12
- UTC
- 13:57:372020-03-12
Main parameters
| Date and time | 2020-03-12 13:57:37 UTC 2020-03-12 14:57:37 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.663° N, 4.164° E Uncertainty ± 1.1 km |
| Event ID | ROB 9465 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-03-12 15:21:11 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
- 6.2 – 85.1km
- 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: 6 measurements, root-mean-square deviation 0.11 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 | 6.2 | 255 | 13:57:39.13+1.24 s | 13:57:39.91+2.02 s | 0.78 |
| RQRRonquières | 7.7 | 146 | 13:57:39.52+1.63 s | – | – |
| UCCBUccle | 20.3 | 43 | 13:57:41.79+3.90 s | 13:57:44.26+6.37 s | 2.47 |
| UCCSUccle | 20.3 | 43 | 13:57:41.88+3.99 s | – | – |
| TGATangissart | 26.1 | 104 | 13:57:42.57+4.68 s | 13:57:45.47+7.58 s | 2.90 |
| CLAClavier | 85.1 | 108 | 13:57:52.83+14.94 s | – | – |
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