BELGIAN COAST (BE)
Known mine explosion16 June 2015
- Magnitude
- 1.9ML
- Depth
- 5.6km ± 7.0
- Belgian time
- 11:47:112015-06-16
- UTC
- 09:47:112015-06-16
Main parameters
| Date and time | 2015-06-16 09:47:11 UTC 2015-06-16 11:47:11 Belgian time |
|---|---|
| Magnitude | ML 1.9 |
| Epicentral coordinates | 51.364° N, 2.948° E Uncertainty ± 6.2 km |
| Depth of hypocenter | 5.6 ± 7.0 km |
| Event ID | ROB 5350 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2015-06-16 13:05:04 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
- 11
- Epicentral distance
- 14.0 – 185.8km
- 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 5.6 km. P wave: 4 measurements, root-mean-square deviation 0.18 s.
Stations farther than 120 km are left out of the fit: the first waves to reach them have travelled beneath the crust, through the mantle, where they propagate faster.
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)11 stations | ||||||
| OSTBOostende | 14.0 | 183 | 09:47:14.09+2.51 s | – | – | – |
| ZEVZevekote | 25.5 | 188 | 09:47:16.23+4.65 s | 09:47:19.48+7.90 s | 3.25 | 84.2 |
| LESLessines | 96.0 | 139 | 09:47:27.46+15.88 s | – | – | – |
| SKQSteenkerque | 112.4 | 135 | 09:47:30.59+19.01 s | – | – | – |
| RQRRonquières | 123.1 | 133 | 09:47:31.48+19.90 s | – | – | – |
| BRQBracquegnies | 128.9 | 139 | 09:47:33.58+22.00 s | – | – | – |
| BOUBougnies | 129.2 | 147 | 09:47:33.67+22.09 s | – | – | – |
| SNFSeneffe | 133.5 | 135 | 09:47:34.02+22.44 s | – | – | – |
| MRDMaredsous | 174.3 | 132 | 09:47:40.30+28.72 s | – | – | – |
| DOUDourbes | 182.9 | 140 | 09:47:41.69+30.11 s | – | – | – |
| GESGesves | 185.8 | 125 | 09:47:41.32+29.74 s | – | – | – |