LANDRICHAMPS (FR)
Quarry blast13 September 2019
- Magnitude
- 1.1ML
- Depth
- 10.0km ± 32.1
- Belgian time
- 11:03:092019-09-13
- UTC
- 09:03:092019-09-13
Main parameters
| Date and time | 2019-09-13 09:03:09 UTC 2019-09-13 11:03:09 Belgian time |
|---|---|
| Magnitude | ML 1.1 |
| Epicentral coordinates | 50.097° N, 4.833° E Uncertainty ± 13.8 km |
| Depth of hypocenter | 10.0 ± 32.1 km |
| Event ID | ROB 8650 |
Data source : ROB (Royal Observatory of Belgium)
Last update : 2019-09-13 11:39:06 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
- 17.0 – 49.0km
- Mean velocity, P wave
- 5.1km/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 10.0 km. P wave: 4 measurements, root-mean-square deviation 0.89 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)4 stations | ||||||
| DOUDourbes | 17.0 | 269 | 09:03:12.60+3.53 s | 09:03:14.96+5.89 s | 2.36 | 20.0 |
| MRDMaredsous | 23.3 | 349 | 09:03:13.45+4.38 s | 09:03:16.39+7.32 s | 2.94 | – |
| GESGesves | 36.8 | 29 | 09:03:14.29+5.22 s | 09:03:19.80+10.73 s | 5.51 | – |
| CLAClavier | 49.0 | 43 | 09:03:18.96+9.89 s | – | – | – |
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