CHANXHE (BE)
Quarry blast26 February 2018
- Magnitude
- 1.6ML
- Depth
- –
- Belgian time
- 16:00:042018-02-26
- UTC
- 15:00:042018-02-26
Main parameters
| Date and time | 2018-02-26 15:00:04 UTC 2018-02-26 16:00:04 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.498° N, 5.607° E Uncertainty ± 0.8 km |
| Event ID | ROB 6375 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-02-26 16:05:55 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
- 15.7 – 56.9km
- Mean velocity, P wave
- 5.7km/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: 7 measurements, root-mean-square deviation 0.28 s. S wave: 4 measurements, root-mean-square deviation 0.27 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)7 stations | |||||
| LCHLa Chartreuse | 15.7 | 358 | 15:00:07.24+3.09 s | 15:00:09.56+5.41 s | 2.32 |
| CLAClavier | 23.4 | 248 | 15:00:07.92+3.77 s | 15:00:11.37+7.22 s | 3.45 |
| MEMSMembach | 31.1 | 66 | 15:00:09.55+5.40 s | – | – |
| HOUHouvegnez | 32.5 | 119 | 15:00:10.10+5.95 s | – | – |
| MRGMont Rigi | 33.2 | 87 | 15:00:10.01+5.86 s | 15:00:14.18+10.03 s | 4.17 |
| GESGesves | 39.0 | 251 | 15:00:11.13+6.98 s | – | – |
| KLBKalborn | 56.9 | 141 | 15:00:14.71+10.56 s | 15:00:21.14+16.99 s | 6.43 |