Hohenfels-Essingen (DE)
Quarry blast30 November 2020
- Magnitude
- 1.9ML
- Depth
- –
- Belgian time
- 12:38:422020-11-30
- UTC
- 11:38:422020-11-30
Main parameters
| Date and time | 2020-11-30 11:38:42 UTC 2020-11-30 12:38:42 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 50.255° N, 6.712° E Uncertainty ± 1.6 km |
| Event ID | ROB 11435 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2020-11-30 14:19:53 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
- 46.4 – 152.3km
- Mean velocity, P wave
- 6.0km/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: 5 measurements, root-mean-square deviation 0.15 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 | |||||
| KLBKalborn | 46.4 | 248 | 11:38:50.01+7.92 s | 11:38:55.81+13.72 s | 5.80 |
| MRGMont Rigi | 53.5 | 302 | 11:38:51.45+9.36 s | 11:38:58.73+16.64 s | 7.28 |
| MEMHMembach | 63.5 | 309 | 11:38:53.13+11.04 s | 11:39:01.11+19.02 s | 7.98 |
| MEMSMembach | 63.5 | 309 | 11:38:53.27+11.18 s | – | – |
| DOUDourbes | 152.3 | 264 | 11:39:07.74+25.65 s | 11:39:27.21+45.12 s | 19.47 |
| Dutch seismic network (KNMI)1 station | |||||
| HGNHeimansgroeve | 79.2 | 316 | 11:38:55.52+13.43 s | – | – |