FOISCHES (FR)
Quarry blast6 November 2020
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 11:19:062020-11-06
- UTC
- 10:19:062020-11-06
Main parameters
| Date and time | 2020-11-06 10:19:06 UTC 2020-11-06 11:19:06 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.126° N, 4.797° E Uncertainty ± 4.8 km |
| Event ID | ROB 11260 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-11-06 11:31:10 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
- 14.8 – 35.5km
- Mean velocity, P wave
- 5.4km/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 0.37 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 | |||||
| DOUDourbes | 14.8 | 257 | 10:19:08.98+2.08 s | 10:19:11.12+4.22 s | 2.14 |
| MRDMaredsous | 19.7 | 354 | 10:19:09.97+3.07 s | 10:19:12.35+5.45 s | 2.38 |
| RCHRochefort | 30.9 | 84 | 10:19:12.63+5.73 s | – | – |
| GESGesves | 35.5 | 36 | 10:19:12.46+5.56 s | – | – |
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