FLERINGEN (DE)
Quarry blast14 May 2020
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 11:52:082020-05-14
- UTC
- 09:52:082020-05-14
Main parameters
| Date and time | 2020-05-14 09:52:08 UTC 2020-05-14 11:52:08 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.182° N, 6.495° E Uncertainty ± 0.7 km |
| Event ID | ROB 10010 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-05-14 14:49:08 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
- 29.1 – 90.6km
- Mean velocity, P wave
- 6.2km/s
- Mean velocity, S wave
- 3.5km/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 0.34 s. S wave: 5 measurements, root-mean-square deviation 0.42 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)5 stations | |||||
| KLBKalborn | 29.1 | 252 | 09:52:14.02+5.17 s | 09:52:18.41+9.56 s | 4.39 |
| VIAVianden | 34.6 | 217 | 09:52:15.01+6.16 s | 09:52:19.97+11.12 s | 4.96 |
| MRGMont Rigi | 47.2 | 321 | 09:52:16.94+8.09 s | 09:52:23.09+14.24 s | 6.15 |
| MEMHMembach | 58.7 | 324 | 09:52:18.75+9.90 s | 09:52:27.01+18.16 s | 8.26 |
| RCHRochefort | 90.6 | 269 | 09:52:24.85+16.00 s | 09:52:35.19+26.34 s | 10.34 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 76.1 | 329 | 09:52:22.02+13.17 s | – | – |