DURBUY (BE)
Quarry blast16 January 2020
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 15:14:512020-01-16
- UTC
- 14:14:512020-01-16
Main parameters
| Date and time | 2020-01-16 14:14:51 UTC 2020-01-16 15:14:51 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.352° N, 5.550° E Uncertainty ± 0.5 km |
| Event ID | ROB 9135 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-01-16 15:25:30 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
- 13
- Epicentral distance
- 19.2 – 73.9km
- Mean velocity, P wave
- 6.0km/s
- Mean velocity, S wave
- 3.4km/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: 13 measurements, root-mean-square deviation 0.17 s. S wave: 10 measurements, root-mean-square deviation 0.36 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)12 stations | |||||
| CLAClavier | 19.2 | 293 | 14:14:54.59+3.25 s | 14:14:57.36+6.02 s | 2.77 |
| RCHRochefort | 31.8 | 227 | 14:14:57.10+5.76 s | 14:15:01.41+10.07 s | 4.31 |
| LCHLa Chartreuse | 32.1 | 6 | 14:14:56.93+5.59 s | 14:15:01.84+10.50 s | 4.91 |
| HOUHouvegnez | 32.4 | 89 | 14:14:56.96+5.62 s | – | – |
| GESGesves | 33.2 | 277 | 14:14:57.54+6.20 s | 14:15:02.10+10.76 s | 4.56 |
| MRGMont Rigi | 41.3 | 64 | 14:14:58.49+7.15 s | 14:15:03.39+12.05 s | 4.90 |
| MEMSMembach | 43.4 | 49 | 14:14:58.99+7.65 s | 14:15:04.51+13.17 s | 5.52 |
| MEMHMembach | 43.4 | 49 | 14:14:59.00+7.66 s | – | – |
| KLBKalborn | 48.7 | 125 | 14:15:00.07+8.73 s | 14:15:06.08+14.74 s | 6.01 |
| MRDMaredsous | 56.0 | 265 | 14:15:01.09+9.75 s | 14:15:07.89+16.55 s | 6.80 |
| VIAVianden | 65.7 | 135 | 14:15:02.76+11.42 s | – | – |
| DOUDourbes | 73.9 | 248 | 14:15:04.16+12.82 s | 14:15:13.42+22.08 s | 9.26 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 53.2 | 30 | 14:15:00.81+9.47 s | 14:15:07.81+16.47 s | 7.00 |