WAIMES (BE)
Quarry blast30 July 2019
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 13:32:112019-07-30
- UTC
- 11:32:112019-07-30
Main parameters
| Date and time | 2019-07-30 11:32:11 UTC 2019-07-30 13:32:11 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.420° N, 6.105° E Uncertainty ± 3.3 km |
| Event ID | ROB 8490 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-08-12 14:35:05 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
- 6
- Epicentral distance
- 10.2 – 40.2km
- Mean velocity, P wave
- 5.5km/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: 6 measurements, root-mean-square deviation 0.07 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 | |||||
| HOUHouvegnez | 10.2 | 224 | 11:32:13.09+2.04 s | – | – |
| MRGMont Rigi | 10.3 | 348 | 11:32:13.00+1.95 s | 11:32:14.49+3.44 s | 1.49 |
| MEMSMembach | 22.1 | 342 | 11:32:15.19+4.14 s | – | – |
| MEMHMembach | 22.1 | 342 | 11:32:15.20+4.15 s | – | – |
| KLBKalborn | 35.6 | 180 | 11:32:17.75+6.70 s | 11:32:21.76+10.71 s | 4.01 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 40.2 | 342 | 11:32:18.36+7.31 s | – | – |
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