WAIMES (BE)
Quarry blast30 November 2017
- Magnitude
- 1.2ML
- Depth
- –
- Belgian time
- 12:06:532017-11-30
- UTC
- 11:06:532017-11-30
Main parameters
| Date and time | 2017-11-30 11:06:53 UTC 2017-11-30 12:06:53 Belgian time |
|---|---|
| Magnitude | ML 1.2 |
| Epicentral coordinates | 50.420° N, 6.100° E Uncertainty ± 0.7 km |
| Event ID | ROB 6075 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2017-11-30 13:08:28 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
- 10.0 – 35.6km
- 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: 4 measurements, root-mean-square deviation 0.12 s. S wave: 4 measurements, root-mean-square deviation 0.14 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 | |||||
| HOUHouvegnez | 10.0 | 223 | 11:06:55.78+2.07 s | 11:06:57.17+3.46 s | 1.39 |
| MRGMont Rigi | 10.2 | 350 | 11:06:55.65+1.94 s | 11:06:57.41+3.70 s | 1.76 |
| MEMSMembach | 21.9 | 343 | 11:06:57.76+4.05 s | 11:07:00.52+6.81 s | 2.76 |
| KLBKalborn | 35.6 | 179 | 11:07:00.22+6.51 s | 11:07:04.63+10.92 s | 4.41 |