TROOZ (BE)
Quarry blast28 August 2019
- Magnitude
- 1.5ML
- Depth
- –
- Belgian time
- 15:07:292019-08-28
- UTC
- 13:07:292019-08-28
Main parameters
| Date and time | 2019-08-28 13:07:29 UTC 2019-08-28 15:07:29 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.566° N, 5.686° E Uncertainty ± 0.9 km |
| Event ID | ROB 8585 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-08-28 15:12:39 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
- 10.2 – 60.0km
- Mean velocity, P wave
- 5.8km/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: 5 measurements, root-mean-square deviation 0.17 s. S wave: 4 measurements, root-mean-square deviation 0.17 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 | |||||
| LCHLa Chartreuse | 10.2 | 323 | 13:07:31.05+1.86 s | 13:07:32.80+3.61 s | 1.75 |
| CLAClavier | 31.8 | 239 | 13:07:35.13+5.94 s | 13:07:39.00+9.81 s | 3.87 |
| HOUHouvegnez | 32.7 | 136 | 13:07:35.27+6.08 s | 13:07:39.28+10.09 s | 4.01 |
| KLBKalborn | 60.0 | 150 | 13:07:40.10+10.91 s | 13:07:46.96+17.77 s | 6.86 |
| Dutch seismic network (KNMI)1 station | |||||
| VKBValkenburg | 34.2 | 12 | 13:07:35.29+6.10 s | – | – |