ANDENNE (BE)
Quarry blast27 March 2019
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 14:35:492019-03-27
- UTC
- 13:35:492019-03-27
Main parameters
| Date and time | 2019-03-27 13:35:49 UTC 2019-03-27 14:35:49 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.469° N, 5.003° E Uncertainty ± 0.9 km |
| Event ID | ROB 8005 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-03-27 14:47:25 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
- 11.1 – 50.8km
- Mean velocity, P wave
- 5.2km/s
- Mean velocity, S wave
- 3.1km/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 0.11 s. S wave: 5 measurements, root-mean-square deviation 0.30 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 | |||||
| GESGesves | 11.1 | 148 | 13:35:51.33+1.87 s | 13:35:52.81+3.35 s | 1.48 |
| CLAClavier | 21.9 | 105 | 13:35:53.42+3.96 s | 13:35:56.00+6.54 s | 2.58 |
| MRDMaredsous | 25.0 | 222 | 13:35:53.99+4.53 s | 13:35:56.99+7.53 s | 3.00 |
| RCHRochefort | 38.4 | 155 | 13:35:56.29+6.83 s | 13:36:02.14+12.68 s | 5.85 |
| DOUDourbes | 50.8 | 215 | 13:35:58.92+9.46 s | 13:36:05.43+15.97 s | 6.51 |