PHILIPPEVILLE (BE)
Quarry blast15 January 2019
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 13:07:162019-01-15
- UTC
- 12:07:162019-01-15
Main parameters
| Date and time | 2019-01-15 12:07:16 UTC 2019-01-15 13:07:16 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.181° N, 4.620° E Uncertainty ± 0.6 km |
| Event ID | ROB 7625 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-01-15 15:08:43 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
- 7
- Epicentral distance
- 9.8 – 70.9km
- 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: 7 measurements, root-mean-square deviation 0.15 s. S wave: 7 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)7 stations | |||||
| DOUDourbes | 9.8 | 191 | 12:07:18.09+1.79 s | 12:07:19.76+3.46 s | 1.67 |
| MRDMaredsous | 17.1 | 38 | 12:07:19.50+3.20 s | 12:07:21.89+5.59 s | 2.39 |
| GESGesves | 40.3 | 56 | 12:07:23.65+7.35 s | 12:07:27.96+11.66 s | 4.31 |
| RCHRochefort | 43.5 | 94 | 12:07:23.87+7.57 s | 12:07:29.75+13.45 s | 5.88 |
| SKQSteenkerque | 64.7 | 324 | 12:07:27.59+11.29 s | 12:07:36.03+19.73 s | 8.44 |
| UCCBUccle | 70.9 | 345 | 12:07:28.41+12.11 s | 12:07:37.43+21.13 s | 9.02 |
| UCCSUccle | 70.9 | 345 | 12:07:28.52+12.22 s | 12:07:37.49+21.19 s | 8.97 |