HUMAIN (BE)
Known mine explosion22 August 2013
- Magnitude
- 1.6ML
- Depth
- 11.7km ± 5.4
- Belgian time
- 12:31:532013-08-22
- UTC
- 10:31:532013-08-22
Main parameters
| Date and time | 2013-08-22 10:31:53 UTC 2013-08-22 12:31:53 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.192° N, 5.242° E Uncertainty ± 1.5 km |
| Depth of hypocenter | 11.7 ± 5.4 km |
| Event ID | ROB 4938 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2013-08-22 14:00:29 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
- 4
- Epicentral distance
- 25.6 – 71.6km
- Mean velocity, P wave
- 6.1km/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. Hypocenter at a depth of 11.7 km. P wave: 4 measurements, root-mean-square deviation 0.09 s. S wave: 4 measurements, root-mean-square deviation 0.14 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 | nm | |
|---|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)4 stations | ||||||
| CLAClavier | 25.6 | 9 | 10:31:57.71+4.62 s | 10:32:01.40+8.31 s | 3.69 | 42.5 |
| DOUDourbes | 47.5 | 257 | 10:32:01.25+8.16 s | 10:32:07.37+14.28 s | 6.12 | – |
| KLBKalborn | 62.8 | 99 | 10:32:03.52+10.43 s | 10:32:11.89+18.80 s | 8.37 | – |
| MEMSMembach | 71.6 | 49 | 10:32:05.17+12.08 s | 10:32:14.02+20.93 s | 8.85 | – |