FLORENNES (BE)
Quarry blast2 June 2020
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 10:43:072020-06-02
- UTC
- 08:43:072020-06-02
Main parameters
| Date and time | 2020-06-02 08:43:07 UTC 2020-06-02 10:43:07 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.272° N, 4.598° E Uncertainty ± 0.8 km |
| Event ID | ROB 10155 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-02 14:19:05 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
- 8
- Epicentral distance
- 12.5 – 60.8km
- Mean velocity, P wave
- 5.9km/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: 8 measurements, root-mean-square deviation 0.49 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)8 stations | |||||
| MRDMaredsous | 12.5 | 75 | 08:43:09.90+2.78 s | 08:43:11.45+4.33 s | 1.55 |
| DOUDourbes | 19.7 | 181 | 08:43:10.94+3.82 s | 08:43:13.57+6.45 s | 2.63 |
| GESGesves | 37.0 | 70 | 08:43:13.90+6.78 s | 08:43:18.22+11.10 s | 4.32 |
| TGATangissart | 37.4 | 352 | 08:43:13.88+6.76 s | – | – |
| RCHRochefort | 46.7 | 106 | 08:43:14.73+7.61 s | – | – |
| BOUBougnies | 48.3 | 286 | 08:43:15.44+8.32 s | – | – |
| CLAClavier | 52.7 | 72 | 08:43:17.59+10.47 s | – | – |
| UCCBUccle | 60.8 | 344 | 08:43:17.81+10.69 s | – | – |
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