WUPPERTAL (DE)
Quarry blast28 October 2019
- Magnitude
- 2.1ML
- Depth
- –
- Belgian time
- 10:03:282019-10-28
- UTC
- 09:03:282019-10-28
Main parameters
| Date and time | 2019-10-28 09:03:28 UTC 2019-10-28 10:03:28 Belgian time |
|---|---|
| Magnitude | ML 2.1 |
| Epicentral coordinates | 51.267° N, 7.083° E Uncertainty ± 2.1 km |
| Event ID | ROB 8780 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-10-28 10:16:21 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
- 14
- Epicentral distance
- 80.3 – 289.3km
- Mean velocity, P wave
- 5.5km/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 0.37 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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)11 stations | |||||
| MEMSMembach | 105.1 | 226 | 09:03:46.47+17.49 s | – | – |
| MEMHMembach | 105.1 | 226 | 09:03:46.49+17.51 s | – | – |
| EBNEben-Emael | 111.5 | 243 | 09:03:48.28+19.30 s | – | – |
| HOUHouvegnez | 126.8 | 217 | 09:03:50.25+21.27 s | 09:04:05.81+36.83 s | 15.56 |
| KLBKalborn | 146.9 | 208 | 09:03:52.95+23.97 s | 09:04:10.58+41.60 s | 17.63 |
| CLAClavier | 156.9 | 234 | 09:03:53.90+24.92 s | – | – |
| VIAVianden | 160.7 | 203 | 09:03:55.88+26.90 s | – | – |
| GESGesves | 171.4 | 236 | 09:03:55.75+26.77 s | – | – |
| RQRRonquières | 213.9 | 251 | 09:04:05.03+36.05 s | – | – |
| BOUBougnies | 241.7 | 247 | 09:04:06.22+37.24 s | – | – |
| OSTBOostende | 289.3 | 271 | 09:04:11.53+42.55 s | – | – |
| Dutch seismic network (KNMI)3 stations | |||||
| WTSBWinterswijk New | 80.3 | 346 | 09:03:42.31+13.33 s | 09:03:52.34+23.36 s | 10.03 |
| HGNHeimansgroeve | 98.2 | 236 | 09:03:46.09+17.11 s | 09:03:58.77+29.79 s | 12.68 |
| VKBValkenburg | 101.3 | 244 | 09:03:46.72+17.74 s | 09:03:58.69+29.71 s | 11.97 |