BURDINNE (BE)
Quarry blast23 June 2020
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 13:53:072020-06-23
- UTC
- 11:53:072020-06-23
Main parameters
| Date and time | 2020-06-23 11:53:07 UTC 2020-06-23 13:53:07 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.585° N, 5.161° E Uncertainty ± 0.5 km |
| Event ID | ROB 10345 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-06-23 17:04:34 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
- 15
- Epicentral distance
- 21.0 – 86.4km
- Mean velocity, P wave
- 5.8km/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: 15 measurements, root-mean-square deviation 0.49 s. S wave: 14 measurements, root-mean-square deviation 0.35 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)13 stations | |||||
| CLAClavier | 21.0 | 152 | 11:53:10.06+2.90 s | 11:53:13.97+6.81 s | 3.91 |
| GESGesves | 22.8 | 193 | 11:53:11.17+4.01 s | 11:53:14.38+7.22 s | 3.21 |
| LCHLa Chartreuse | 31.6 | 79 | 11:53:12.82+5.66 s | 11:53:16.45+9.29 s | 3.63 |
| MRDMaredsous | 42.1 | 222 | 11:53:14.90+7.74 s | 11:53:20.44+13.28 s | 5.54 |
| EBNEben-Emael | 43.5 | 57 | 11:53:13.22+6.06 s | 11:53:21.04+13.88 s | 7.82 |
| RCHRochefort | 48.0 | 174 | 11:53:15.60+8.44 s | 11:53:21.52+14.36 s | 5.92 |
| MEMHMembach | 60.2 | 87 | 11:53:18.00+10.84 s | 11:53:24.93+17.77 s | 6.93 |
| HOUHouvegnez | 65.2 | 113 | 11:53:18.70+11.54 s | 11:53:26.98+19.82 s | 8.28 |
| MRGMont Rigi | 65.3 | 97 | 11:53:18.31+11.15 s | 11:53:27.27+20.11 s | 8.96 |
| RQRRonquières | 66.3 | 272 | 11:53:18.32+11.16 s | – | – |
| DOUDourbes | 67.8 | 217 | 11:53:19.10+11.94 s | 11:53:27.31+20.15 s | 8.21 |
| SKQSteenkerque | 76.9 | 276 | 11:53:20.12+12.96 s | 11:53:30.43+23.27 s | 10.31 |
| KLBKalborn | 86.4 | 128 | 11:53:22.19+15.03 s | 11:53:33.11+25.95 s | 10.92 |
| Dutch seismic network (KNMI)2 stations | |||||
| VKBValkenburg | 54.1 | 54 | 11:53:16.46+9.30 s | 11:53:23.41+16.25 s | 6.95 |
| HGNHeimansgroeve | 58.0 | 70 | 11:53:17.15+9.99 s | 11:53:24.38+17.22 s | 7.23 |