EUPEN (BE)
Quarry blast8 June 2020
- Magnitude
- 1.3ML
- Depth
- –
- Belgian time
- 14:24:462020-06-08
- UTC
- 12:24:462020-06-08
Main parameters
| Date and time | 2020-06-08 12:24:46 UTC 2020-06-08 14:24:46 Belgian time |
|---|---|
| Magnitude | ML 1.3 |
| Epicentral coordinates | 50.659° N, 6.029° E Uncertainty ± 2.0 km |
| Event ID | ROB 10210 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-10 15:09:39 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
- 5.7 – 33.9km
- Mean velocity, P wave
- 5.9km/s
- Mean velocity, S wave
- 3.2km/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: 6 measurements, root-mean-square deviation 0.23 s. S wave: 4 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)4 stations | |||||
| MEMSMembach | 5.7 | 193 | 12:24:47.38+0.96 s | – | – |
| MEMHMembach | 5.7 | 193 | 12:24:47.41+0.99 s | 12:24:48.47+2.05 s | 1.06 |
| MRGMont Rigi | 16.8 | 169 | 12:24:49.55+3.13 s | 12:24:52.35+5.93 s | 2.80 |
| HOUHouvegnez | 33.9 | 183 | 12:24:52.11+5.69 s | 12:24:57.06+10.64 s | 4.95 |
| Dutch seismic network (KNMI)2 stations | |||||
| HGNHeimansgroeve | 13.6 | 330 | 12:24:49.01+2.59 s | 12:24:50.96+4.54 s | 1.95 |
| VKBValkenburg | 28.8 | 323 | 12:24:51.88+5.46 s | – | – |