BURG-REULAND (BE)
Quarry blast19 November 2020
- Magnitude
- 1.1ML
- Depth
- –
- Belgian time
- 12:20:552020-11-19
- UTC
- 11:20:552020-11-19
Main parameters
| Date and time | 2020-11-19 11:20:55 UTC 2020-11-19 12:20:55 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.212° N, 6.046° E Uncertainty ± 1.0 km |
| Event ID | ROB 11350 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-11-20 07:14:30 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
- 13.2 – 104.5km
- Mean velocity, P wave
- 5.8km/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: 9 measurements, root-mean-square deviation 0.15 s. S wave: 4 measurements, root-mean-square deviation 0.26 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 | |||||
| KLBKalborn | 13.2 | 160 | 11:20:57.67+2.35 s | 11:20:59.02+3.70 s | 1.35 |
| HOUHouvegnez | 16.1 | 350 | 11:20:58.26+2.94 s | – | – |
| VIAVianden | 32.8 | 160 | 11:21:01.35+6.03 s | 11:21:04.92+9.60 s | 3.57 |
| MRGMont Rigi | 33.3 | 4 | 11:21:01.27+5.95 s | – | – |
| MEMHMembach | 44.2 | 357 | 11:21:03.16+7.84 s | – | – |
| RCHRochefort | 58.8 | 264 | 11:21:05.36+10.04 s | 11:21:12.50+17.18 s | 7.14 |
| GESGesves | 71.0 | 286 | 11:21:07.51+12.19 s | 11:21:16.64+21.32 s | 9.13 |
| DOUDourbes | 104.5 | 263 | 11:21:13.32+18.00 s | – | – |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 61.9 | 353 | 11:21:06.21+10.89 s | – | – |