HACQUEGNIES (BE)
Known mine explosion21 March 2014
- Magnitude
- 1.5ML
- Depth
- 8.0km ± 13.9
- Belgian time
- 13:01:032014-03-21
- UTC
- 12:01:032014-03-21
Main parameters
| Date and time | 2014-03-21 12:01:03 UTC 2014-03-21 13:01:03 Belgian time |
|---|---|
| Magnitude | ML 1.5 |
| Epicentral coordinates | 50.656° N, 3.602° E Uncertainty ± 15.1 km |
| Depth of hypocenter | 8.0 ± 13.9 km |
| Event ID | ROB 5080 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2014-03-21 14:26:39 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
- 9
- Epicentral distance
- 18.1 – 109.5km
- Mean velocity, P wave
- 5.6km/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 8.0 km. P wave: 9 measurements, root-mean-square deviation 0.45 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)9 stations | ||||||
| LESLessines | 18.1 | 70 | 12:01:06.82+3.82 s | 12:01:10.62+7.62 s | 3.80 | – |
| SKQSteenkerque | 33.8 | 91 | 12:01:08.93+5.93 s | – | – | – |
| BOUBougnies | 38.4 | 141 | 12:01:09.29+6.29 s | – | – | – |
| BRQBracquegnies | 42.5 | 117 | 12:01:10.04+7.04 s | – | – | – |
| RQRRonquières | 44.4 | 97 | 12:01:10.54+7.54 s | – | – | – |
| SNFSeneffe | 50.9 | 108 | 12:01:11.31+8.31 s | – | – | – |
| MRDMaredsous | 91.6 | 115 | 12:01:19.08+16.08 s | – | – | – |
| DOUDourbes | 94.2 | 131 | 12:01:18.84+15.84 s | 12:01:31.52+28.52 s | 12.68 | 9.1 |
| GESGesves | 109.5 | 105 | 12:01:22.92+19.92 s | – | – | – |
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