WELLIN (BE)
Quarry blast9 October 2019
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 15:20:332019-10-09
- UTC
- 13:20:332019-10-09
Main parameters
| Date and time | 2019-10-09 13:20:33 UTC 2019-10-09 15:20:33 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.100° N, 5.146° E Uncertainty ± 0.8 km |
| Event ID | ROB 8715 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-10-09 15:28:43 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
- 8.4 – 83.6km
- Mean velocity, P wave
- 5.8km/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: 8 measurements, root-mean-square deviation 0.25 s. S wave: 4 measurements, root-mean-square deviation 0.34 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 | |||||
| RCHRochefort | 8.4 | 43 | 13:20:34.62+1.38 s | 13:20:35.95+2.71 s | 1.33 |
| GESGesves | 32.0 | 352 | 13:20:39.11+5.87 s | 13:20:43.76+10.52 s | 4.65 |
| MRDMaredsous | 35.1 | 310 | 13:20:39.81+6.57 s | 13:20:43.85+10.61 s | 4.04 |
| CLAClavier | 37.2 | 17 | 13:20:39.78+6.54 s | – | – |
| DOUDourbes | 39.4 | 269 | 13:20:40.36+7.12 s | 13:20:45.22+11.98 s | 4.86 |
| HOUHouvegnez | 67.5 | 65 | 13:20:44.88+11.64 s | – | – |
| KLBKalborn | 68.9 | 90 | 13:20:45.82+12.58 s | – | – |
| MEMSMembach | 83.6 | 47 | 13:20:47.71+14.47 s | – | – |