ROCHEFORT (BE)
Quarry blast7 November 2019
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 11:24:262019-11-07
- UTC
- 10:24:262019-11-07
Main parameters
| Date and time | 2019-11-07 10:24:26 UTC 2019-11-07 11:24:26 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.184° N, 5.234° E Uncertainty ± 0.8 km |
| Event ID | ROB 8835 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-11-07 12:02:38 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
- 5
- Epicentral distance
- 3.2 – 63.3km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.3km/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: 5 measurements, root-mean-square deviation 0.19 s. S wave: 5 measurements, root-mean-square deviation 0.24 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)5 stations | |||||
| RCHRochefort | 3.2 | 188 | 10:24:27.65+0.71 s | 10:24:27.91+0.97 s | 0.26 |
| CLAClavier | 26.6 | 11 | 10:24:31.68+4.74 s | 10:24:35.32+8.38 s | 3.64 |
| MRDMaredsous | 35.7 | 292 | 10:24:33.38+6.44 s | 10:24:38.47+11.53 s | 5.09 |
| DOUDourbes | 46.7 | 258 | 10:24:34.61+7.67 s | 10:24:41.40+14.46 s | 6.79 |
| KLBKalborn | 63.3 | 98 | 10:24:37.72+10.78 s | 10:24:46.20+19.26 s | 8.48 |