Buchenbach
Known mine explosion9 April 2015
- Magnitude
- 2.6ML
- Depth
- 1.1km ± 15.4
- Belgian time
- 11:59:562015-04-09
- UTC
- 09:59:562015-04-09
Main parameters
| Date and time | 2015-04-09 09:59:56 UTC 2015-04-09 11:59:56 Belgian time |
|---|---|
| Magnitude | ML 2.6 |
| Epicentral coordinates | 50.405° N, 6.189° E Uncertainty ± 9.2 km |
| Depth of hypocenter | 1.1 ± 15.4 km |
| Event ID | ROB 5307 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-04-09 15:44:26 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
- 14.2 – 63.0km
- Mean velocity, P wave
- 7.2km/s
- Mean velocity, S wave
- 4.0km/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. Hypocenter at a depth of 1.1 km. P wave: 5 measurements, root-mean-square deviation 1.82 s. S wave: 5 measurements, root-mean-square deviation 2.25 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 | ||||||
| HOUHouvegnez | 14.2 | 247 | 09:59:58.85+2.81 s | 10:00:00.02+3.98 s | 1.17 | 1064.3 |
| MRGMont Rigi | 14.3 | 326 | 09:59:58.78+2.74 s | 09:59:59.04+3.00 s | 0.26 | 220.2 |
| MEMSMembach | 26.0 | 331 | 10:00:00.97+4.93 s | 10:00:04.08+8.04 s | 3.11 | 841.8 |
| STISart Tilman | 48.6 | 294 | 09:59:59.72+3.68 s | 10:00:04.40+8.36 s | 4.68 | – |
| CLAClavier | 63.0 | 272 | 10:00:07.00+10.96 s | 10:00:14.64+18.60 s | 7.64 | – |