SPRIMONT (BE)
Quarry blast13 November 2018
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 16:00:092018-11-13
- UTC
- 15:00:092018-11-13
Main parameters
| Date and time | 2018-11-13 15:00:09 UTC 2018-11-13 16:00:09 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.489° N, 5.609° E Uncertainty ± 2.6 km |
| Event ID | ROB 7410 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-11-21 15:28:44 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
- 8
- Epicentral distance
- 16.7 – 56.0km
- Mean velocity, P wave
- 5.9km/s
- Mean velocity, S wave
- 3.3km/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: 8 measurements, root-mean-square deviation 0.57 s. S wave: 5 measurements, root-mean-square deviation 0.25 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)8 stations | |||||
| LCHLa Chartreuse | 16.7 | 358 | 15:00:12.55+2.99 s | 15:00:14.92+5.36 s | 2.37 |
| CLAClavier | 23.1 | 251 | 15:00:12.97+3.41 s | 15:00:16.66+7.10 s | 3.69 |
| MEMSMembach | 31.4 | 65 | 15:00:13.67+4.11 s | – | – |
| MEMHMembach | 31.4 | 65 | 15:00:13.72+4.16 s | 15:00:18.90+9.34 s | 5.18 |
| HOUHouvegnez | 31.9 | 118 | 15:00:15.10+5.54 s | – | – |
| MRGMont Rigi | 33.1 | 86 | 15:00:15.02+5.46 s | 15:00:19.47+9.91 s | 4.45 |
| GESGesves | 38.8 | 253 | 15:00:15.83+6.27 s | – | – |
| KLBKalborn | 56.0 | 140 | 15:00:19.47+9.91 s | 15:00:26.26+16.70 s | 6.79 |