ROCHEFORT (BE)
Quarry blast12 November 2019
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 14:04:422019-11-12
- UTC
- 13:04:422019-11-12
Main parameters
| Date and time | 2019-11-12 13:04:42 UTC 2019-11-12 14:04:42 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.096° N, 5.140° E Uncertainty ± 3.1 km |
| Event ID | ROB 8865 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-11-13 15:57:22 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
- 7
- Epicentral distance
- 9.0 – 84.2km
- Mean velocity, P wave
- 5.3km/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: 7 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)7 stations | |||||
| RCHRochefort | 9.0 | 44 | 13:04:43.37+1.15 s | 13:04:44.73+2.51 s | 1.36 |
| MRDMaredsous | 35.1 | 311 | 13:04:48.42+6.20 s | 13:04:53.27+11.05 s | 4.85 |
| DOUDourbes | 39.0 | 270 | 13:04:48.72+6.50 s | 13:04:54.40+12.18 s | 5.68 |
| HOUHouvegnez | 68.1 | 65 | 13:04:53.66+11.44 s | – | – |
| MRGMont Rigi | 81.0 | 55 | 13:04:56.14+13.92 s | – | – |
| MEMSMembach | 84.2 | 47 | 13:04:57.96+15.74 s | – | – |
| MEMHMembach | 84.2 | 47 | 13:04:57.98+15.76 s | – | – |
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