MARCQ (BE)
Known mine explosion29 September 2015
- Magnitude
- 1.0ML
- Depth
- 5.5km ± 5.0
- Belgian time
- 15:11:122015-09-29
- UTC
- 13:11:122015-09-29
Main parameters
| Date and time | 2015-09-29 13:11:12 UTC 2015-09-29 15:11:12 Belgian time |
|---|---|
| Magnitude | ML 1.0 |
| Epicentral coordinates | 50.666° N, 4.006° E Uncertainty ± 7.0 km |
| Depth of hypocenter | 5.5 ± 5.0 km |
| Event ID | ROB 5410 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-09-30 08:58:24 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
- 5.5 – 95.9km
- 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. Hypocenter at a depth of 5.5 km. P wave: 4 measurements, root-mean-square deviation 0.22 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 | |
|---|---|---|---|---|---|
| Belgian seismic network (Royal Observatory of Belgium)4 stations | |||||
| SKQSteenkerque | 5.5 | 110 | 13:11:14.25+1.52 s | – | – |
| RQRRonquières | 16.9 | 113 | 13:11:15.57+2.84 s | – | – |
| SNFSeneffe | 26.2 | 131 | 13:11:17.69+4.96 s | 13:11:20.70+7.97 s | 3.01 |
| CLAClavier | 95.9 | 106 | 13:11:28.97+16.24 s | – | – |
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