ON (BE)
Known mine explosion12 March 2014
- Magnitude
- 1.6ML
- Depth
- 4.8km ± 2.9
- Belgian time
- 12:41:092014-03-12
- UTC
- 11:41:092014-03-12
Main parameters
| Date and time | 2014-03-12 11:41:09 UTC 2014-03-12 12:41:09 Belgian time |
|---|---|
| Magnitude | ML 1.6 |
| Epicentral coordinates | 50.157° N, 5.284° E Uncertainty ± 1.7 km |
| Depth of hypocenter | 4.8 ± 2.9 km |
| Event ID | ROB 5070 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-03-12 12:57:03 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
- 5
- Epicentral distance
- 4.1 – 49.7km
- Mean velocity, P wave
- 5.8km/s
- Mean velocity, S wave
- 3.4km/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 4.8 km. P wave: 5 measurements, root-mean-square deviation 0.12 s. S wave: 4 measurements, root-mean-square deviation 0.20 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)5 stations | ||||||
| RCHRochefort | 4.1 | 267 | 11:41:10.26+1.01 s | – | – | – |
| GESGesves | 29.0 | 331 | 11:41:14.28+5.03 s | 11:41:17.89+8.64 s | 3.61 | – |
| CLAClavier | 29.2 | 3 | 11:41:14.17+4.92 s | 11:41:18.30+9.05 s | 4.13 | 41.8 |
| MRDMaredsous | 40.2 | 294 | 11:41:16.00+6.75 s | 11:41:20.98+11.73 s | 4.98 | – |
| DOUDourbes | 49.7 | 262 | 11:41:17.98+8.73 s | 11:41:24.11+14.86 s | 6.13 | – |