Etna eruption earlier today & Krakatau still very active......
Eruption of #Etna volcano taking place in #Italy currently, Several #earthquakes were also identified within a few kilometres with a magnitude of 4 reached on the Richter scale
12/23 - 11:30 PM EST #Krakatoa/ #Krakatau #lightning update: Rough counts have had peak values of 90 lightning events per minute detected around the volcano! Between ~1430 UTC 22 Dec and ~1900 UTC 23 Dec, there have been tens of thousands of lightning events detected by GLD360. #Krakatau/ #Krakatoa has now had unprecedented amounts of #lightning associated with the latest eruption - more than 39 hours now!?
12/24 - 9:40 AM #Lightning still going strong around #Krakatau/ #Krakatoa this morning - 2 straight days! I have reached out to some colleagues to try to understand what's with the NW-SE and WSW-ENE artifacts that show up from time to time.
These are the most recent readings given for the amount of movement seen at the North Magnetic Pole.
The start date for this data is May 2017. This segment starts on Nov 17, 2018 and ends on Dec 12, 2018.
Column F is month, G is day, H is year.
The readings in column B registers in degrees. In May 2017 the start point was arbitrarily set to 10. So 10 degrees is baseline May 2017.
Since then the pole has moved 2.59 degrees to the East, toward Siberia. As shown by the readings of 12.59.
There are 3 readings taken that show 12.99. That may be the quantum jump in speed starting to show up in the readings or it may be a magnetic jerk. It may be that accelerations are accompanied by a jerk.
In any case that 1/2 degree represents between 34 and 35 miles.
So we wait for 3 more weeks.
"The Correlation of North Magnetic Dip Pole Motion and Seismic Activity" -
omicsonline.org
Which contains this text: "One possible scenario is that the cooling effect of the release of heat from the mantle into the oceans would increase localized areas viscosity, which would tend to hold it in place, acting as a frictional force. But, its cooling would also cause its resistance to decrease, causing the regenerating fields in this area to grow stronger while other areas grow weaker. The increased electron flow would then increase the resulting motor action until a tipping point is reached. In this case when the cooling is causing the movement to be over 22 km/year the driving force of the motor action overcomes the drag from increased viscosity and the pole acts more in a linear manner. and "In addition to the mid-ocean spreading zones, a second tectonic feature that merits consideration is the globe’s back-arc basins. These complex submarine systems are found in conjunction with converging plate boundaries and are concentrated in the western Pacific. More importantly, backarc basins have heat-flow characteristics that are similar to mid-ocean spreading centers" -
omicsonline.org
And then there's:
books.google.com
When you look at the graphs in Figure 4 and 5 you will notice that at low geological activity the speed acts in a quantum way. In other words the Pole speed is grouped into 4 distinct speeds at 12 Km/yr, 16.25 Km/yr, 17.5 Km/yr and 22.2 Km/yr. The Geological activity at 12, 16.25 and 17.5 Km/yr varies from 175 to 325 Km/yr, and at 22.2 Km/yr it varies from 175 to over 600.
The actual data shows the NMDP speed was 22.2 Km/yr ± 0.1 Km/yr in the years 1991 to 1995, inclusive. The geological activity was around 200 for the first 2 years then jumped to 361 and then to around 600 then 627 before the speed broke away in 1996 to 44.1 Km/yr. All of this type of activity would indicate some kind of a strong inertial or ‘frictional’ holding mechanism which prevented the magnetic pole from changing position until there was sufficient geothermal activity to overcome the holding mechanism and allow a speed change.
From a dynamo theory of the magnetic poles [6] we assume that the poles are set up following something similar to the Glatzmaier-Roberts model, which simulates convection and magnetic field generation in a fluid outer core surrounding a solid inner core. And in this case one of the driving forces would be the temperature and motion of the mantle. Geological activity would affect several factors in this model including the temperature of local areas of the mantle which would affect the conductivity of the material in these areas as well as the viscosity of the materials, both of which will have an effect on the resulting magnetic field. |
