FLORENNES (BE)
Quarry blast26 August 2019
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 10:41:242019-08-26
- UTC
- 08:41:242019-08-26
Main parameters
| Date and time | 2019-08-26 08:41:24 UTC 2019-08-26 10:41:24 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.250° N, 4.681° E Uncertainty ± 3.6 km |
| Event ID | ROB 8575 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-08-26 11:30:57 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
- 8.5 – 103.3km
- 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 0.29 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 | 8.5 | 47 | 08:41:25.99+1.69 s | 08:41:27.46+3.16 s | 1.47 |
| DOUDourbes | 18.3 | 200 | 08:41:27.03+2.73 s | 08:41:29.79+5.49 s | 2.76 |
| CLAClavier | 48.0 | 67 | 08:41:32.10+7.80 s | 08:41:37.81+13.51 s | 5.71 |
| BOUBougnies | 54.7 | 287 | 08:41:34.01+9.71 s | – | – |
| SKQSteenkerque | 61.6 | 316 | 08:41:34.77+10.47 s | – | – |
| LCHLa Chartreuse | 78.3 | 56 | 08:41:37.31+13.01 s | – | – |
| EBNEben-Emael | 93.3 | 49 | 08:41:39.97+15.67 s | – | – |
| KLBKalborn | 103.3 | 99 | 08:41:42.09+17.79 s | – | – |
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