TABEN-RODT (DE)
Quarry blast4 July 2018
- Magnitude
- 2.0ML
- Depth
- –
- Belgian time
- 10:05:432018-07-04
- UTC
- 08:05:432018-07-04
Main parameters
| Date and time | 2018-07-04 08:05:43 UTC 2018-07-04 10:05:43 Belgian time |
|---|---|
| Magnitude | ML 2.0 |
| Epicentral coordinates | 49.540° N, 6.662° E Uncertainty ± 5.5 km |
| Event ID | ROB 6880 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2018-07-11 11:01:10 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
- 39.4 – 149.1km
- 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: 4 measurements, root-mean-square deviation 0.11 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)5 stations | |||||
| WLFWalferdange | 39.4 | 291 | 08:05:49.96+6.76 s | – | – |
| VIAVianden | 55.0 | 323 | 08:05:52.75+9.55 s | 08:05:59.39+16.19 s | 6.64 |
| KLBKalborn | 73.9 | 328 | 08:05:55.68+12.48 s | 08:06:04.69+21.49 s | 9.01 |
| MRGMont Rigi | 115.9 | 339 | 08:06:03.12+19.92 s | 08:06:17.30+34.10 s | 14.18 |
| MEMSMembach | 127.7 | 339 | 08:06:04.71+21.51 s | – | – |
| German Regional Seismic Network (BGR, Germany)1 station | |||||
| TNSTaunus Observatorium Kleiner Feldberg | 149.1 | 59 | 08:06:08.62+25.42 s | – | – |