LONTZEN (BE)
Quarry blast8 May 2014
- Magnitude
- 2.1ML
- Depth
- –
- Belgian time
- 11:49:182014-05-08
- UTC
- 09:49:182014-05-08
Main parameters
| Date and time | 2014-05-08 09:49:18 UTC 2014-05-08 11:49:18 Belgian time |
|---|---|
| Magnitude | ML 2.1 |
| Epicentral coordinates | 50.656° N, 5.968° E Uncertainty ± 3.3 km |
| Event ID | ROB 5117 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2025-09-02 16:09:14 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
- 7
- Epicentral distance
- 6.0 – 69.3km
- Mean velocity, P wave
- 7.3km/s
- Mean velocity, S wave
- 3.5km/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 1.24 s. S wave: 7 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)7 stations | ||||||
| MEMSMembach | 6.0 | 150 | 09:49:19.30+0.97 s | 09:49:20.55+2.22 s | 1.25 | 861.2 |
| MRGMont Rigi | 17.8 | 155 | 09:49:21.99+3.66 s | 09:49:24.88+6.55 s | 2.89 | – |
| EBNEben-Emael | 25.8 | 308 | – | 09:49:27.02+8.69 s | – | – |
| LCHLa Chartreuse | 26.1 | 266 | 09:49:23.13+4.80 s | 09:49:26.29+7.96 s | 3.16 | 73.4 |
| HOUHouvegnez | 33.7 | 175 | 09:49:23.88+5.55 s | 09:49:28.39+10.06 s | 4.51 | 51.9 |
| CLAClavier | 54.0 | 241 | 09:49:24.01+5.68 s | 09:49:33.24+14.91 s | 9.23 | – |
| GESGesves | 69.3 | 245 | 09:49:30.10+11.77 s | 09:49:39.26+20.93 s | 9.16 | – |