DINANT (BE)
Quarry blast29 July 2019
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 10:33:222019-07-29
- UTC
- 08:33:222019-07-29
Main parameters
| Date and time | 2019-07-29 08:33:22 UTC 2019-07-29 10:33:22 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.290° N, 4.912° E Uncertainty ± 1.2 km |
| Event ID | ROB 8485 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-08-12 14:34:35 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
- 4
- Epicentral distance
- 10.4 – 31.3km
- Mean velocity, P wave
- 6.7km/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: 4 measurements, root-mean-square deviation 0.13 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)4 stations | |||||
| MRDMaredsous | 10.4 | 278 | 08:33:25.45+2.56 s | 08:33:26.33+3.44 s | 0.88 |
| GESGesves | 16.4 | 50 | 08:33:26.04+3.15 s | – | – |
| RCHRochefort | 27.0 | 124 | 08:33:27.73+4.84 s | 08:33:31.47+8.58 s | 3.74 |
| DOUDourbes | 31.3 | 226 | 08:33:28.57+5.68 s | 08:33:32.61+9.72 s | 4.04 |
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