OLNE (BE)
Quarry blast26 November 2018
- Magnitude
- 1.4ML
- Depth
- –
- Belgian time
- 13:56:262018-11-26
- UTC
- 12:56:262018-11-26
Main parameters
| Date and time | 2018-11-26 12:56:26 UTC 2018-11-26 13:56:26 Belgian time |
|---|---|
| Magnitude | ML 1.4 |
| Epicentral coordinates | 50.602° N, 5.710° E Uncertainty ± 1.0 km |
| Event ID | ROB 7430 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-11-29 15:32:32 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
- 9
- Epicentral distance
- 8.8 – 81.0km
- Mean velocity, P wave
- 7.2km/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: 9 measurements, root-mean-square deviation 0.62 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)9 stations | |||||
| LCHLa Chartreuse | 8.8 | 298 | 12:56:28.02+1.83 s | 12:56:29.10+2.91 s | 1.08 |
| MEMHMembach | 21.3 | 88 | 12:56:30.08+3.89 s | 12:56:32.96+6.77 s | 2.88 |
| MEMSMembach | 21.3 | 88 | 12:56:30.10+3.91 s | – | – |
| EBNEben-Emael | 21.8 | 354 | 12:56:30.60+4.41 s | – | – |
| MRGMont Rigi | 27.8 | 111 | 12:56:31.47+5.28 s | – | – |
| CLAClavier | 35.4 | 235 | 12:56:32.60+6.41 s | – | – |
| OPTOpitter | 56.9 | 355 | 12:56:35.75+9.56 s | – | – |
| KLBKalborn | 62.7 | 153 | 12:56:37.18+10.99 s | 12:56:44.90+18.71 s | 7.72 |
| MOLTMol | 81.0 | 327 | 12:56:37.43+11.24 s | – | – |
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