GESVES (BE)
Quarry blast7 January 2020
- Magnitude
- 1.8ML
- Depth
- –
- Belgian time
- 14:21:032020-01-07
- UTC
- 13:21:032020-01-07
Main parameters
| Date and time | 2020-01-07 13:21:03 UTC 2020-01-07 14:21:03 Belgian time |
|---|---|
| Magnitude | ML 1.8 |
| Epicentral coordinates | 50.412° N, 5.060° E Uncertainty ± 1.1 km |
| Event ID | ROB 9075 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-01-07 15:16:14 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
- 8
- Epicentral distance
- 3.6 – 82.5km
- Mean velocity, P wave
- 5.8km/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: 8 measurements, root-mean-square deviation 0.36 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 | |||||
| GESGesves | 3.6 | 148 | 13:21:03.91+0.89 s | – | – |
| CLAClavier | 17.2 | 87 | 13:21:05.77+2.75 s | – | – |
| RCHRochefort | 31.0 | 157 | 13:21:09.19+6.17 s | 13:21:12.15+9.13 s | 2.96 |
| DOUDourbes | 48.4 | 223 | 13:21:11.50+8.48 s | 13:21:17.67+14.65 s | 6.17 |
| RQRRonquières | 63.0 | 290 | 13:21:14.02+11.00 s | – | – |
| MEMHMembach | 70.8 | 72 | 13:21:15.05+12.03 s | 13:21:24.41+21.39 s | 9.36 |
| MEMSMembach | 70.8 | 72 | 13:21:15.12+12.10 s | – | – |
| KLBKalborn | 82.5 | 115 | 13:21:17.89+14.87 s | – | – |
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