Two 6.7 Earthquakes NNE of Palue, Indonesia and Banda Sea Caused by Magma Movement.

About 41 minutes ago two 6.7 earthquakes occurred at the Banda sea and NNe of Palue Indonesia. What's different about these earthquakes is that they occurred at 549.2 km and 562 km in the Earth's interior.

...
Tuesday October 24 2017, 10:47:47 UTC 41 minutes ago 141km NNE of Palue, Indonesia 6.7 549.2 (km) USGS Feed

Tuesday October 24 2017, 10:47:47 UTC 41 minutes ago Banda Sea. 6.7 562.0 (km) GeoScience Australia
...

quakes.globalincidentmap.com...#

What this means is that these are not normal earthquakes caused by plate tectonic movement, but they were caused by massive magma movements.

That deep down in the earth's crust is a layer called the Asthenosphere.



We have to keep an eye on these earthquakes and see if they continue happening that deep inside the Asthenosphere.

Even thou the following excerpt is about se earthquakes in the U.S., the information sheds some light into what could be happening if we keep seeing earthquakes occurring this deep in the Earth's interior.

3 May 2016
Scientists find likely cause for recent southeast U.S. earthquakes

Posted by llipuma
...
Compared to earthquakes near plate boundaries, earthquakes in the middle of plates are not well understood and the hazards they pose are difficult to quantify. The new findings could help scientists better understand the dangers these earthquakes present, according to the study’s authors.

Old plates and earthquakes

Tectonic plates are composed of Earth’s crust and the uppermost portion of the mantle. Below that is the asthenosphere: the warm, viscous conveyor belt of rock on which tectonic plates ride.

Earthquakes typically occur at the boundaries of tectonic plates, where one plate dips below another, thrusts another upward, or where plate edges scrape alongside each other. Earthquakes rarely occur in the middle of plates, but they can happen when ancient faults or rifts far below the surface reactivate. These areas are relatively weak compared to the surrounding plate, and can easily slip and cause an earthquake.
...

blogs.agu.org...

These two earthquakes occurred well below the middle of the Asthenosphere.

For the Experts. Are these kind of deep earthquakes common? And what is the likely cause of the magma movement?

Very interesting. Thank you for the post.

The fact that the mechanics and whys of this type of deep earthquake are mostly unknown is a bit worrisome. I wonder if we're looking at future heavily increased activity in the Ring of Fire?

a reply to: ElectricUniverse

Globalincidentmap is listing the same quake twice from two different sources. They are horrible for this sort of information.

EMSC is much better, they have the quake reviewed:

Magnitude Mw 6.5
Region BANDA SEA
Date time 2017-10-24 10:47:47.6 UTC
Location 7.25 S ; 123.06 E
Depth 550 km
Distances 313 km NW of Dili, Timor-Leste / pop: 150,000 / local time: 19:47:47.6 2017-10-24
178 km NE of Maumere, Indonesia / pop: 47,600 / local time: 18:47:47.6 2017-10-24
Global view
Source parameters reviewed by a seismologist

If you look at the Scientific data and the historic seismicity map for the area, you see that deep quakes are common where this one took place:

a reply to: jadedANDcynical

Looking at that map we don't know exactly when those have happened. But if we look at all the quakes, and search in specific those at these depths, they are not that common. Not to mention that most of the oldest quakes at that depth are magnitude 4.

If you choose in your criteria to look for quakes at a depth of around 500-600 km, and magnitude 5-7 the only one that will appear is the one that happened last night. They only have records since 2004 thou. But still, it shows these types of quakes at this depth are not that common.

What is happening is that magma is pushing up somewhere below the middle of the Asthenosphere. Whether it was one or two earthquakes in different parts, who knows. BTW, I have noticed that CSEM lists some earthquakes occurring in the U.S. that the U.S.G.S. does not list.

www.abovetopsecret.com...

Anyway, back to this, no earthquakes from mag 5 to mag 7 since 2004 makes this one, or two earthquakes rare doesn't it?

IRIS seismic monitor only shows one earthquake but the magnitude they have it listed is also 6.7

ds.iris.edu...

I am by no means ANY expert on deep quakes like these, but I have a strong hunch the OP's theory is not accurate. It's like assuming just because the iceberg floats, the whole unseen underside melted. If I recall, just because it's hot & magma-y down there doesn't mean it's ALL magma, and the quakes are more related to the hot, but weakened, slabs down there breaking & shifting as they're being driven deeper.

*Paging TrueAmerican, TrueAmerican, please report to the thread*


I'll send him a PM, if anyone understands the mechanics of quakes at any depth, it's TA

Is this Mount Agung related?
We know there is a volcano vent nearby that is predicted to erupt soon.
Normally you might expect such a large magma movement to increase pressures under the volcano.
It has been over 8 hours and there has been no eruption however the magma movement was 340 miles underground and may not have a direct connection to the Bali volcano vent.

Edit to add:
Could be similar to Oct 28, 1707 and Mt Fuji

a reply to: Nyiah

I gave a direct link and excerpt from an AGU article.

Again notice this part.

...
Compared to earthquakes near plate boundaries, earthquakes in the middle of plates are not well understood and the hazards they pose are difficult to quantify. The new findings could help scientists better understand the dangers these earthquakes present, according to the study’s authors.

Old plates and earthquakes

Tectonic plates are composed of Earth’s crust and the uppermost portion of the mantle. Below that is the asthenosphere: the warm, viscous conveyor belt of rock on which tectonic plates ride.

Earthquakes typically occur at the boundaries of tectonic plates, where one plate dips below another, thrusts another upward, or where plate edges scrape alongside each other. Earthquakes rarely occur in the middle of plates, but they can happen when ancient faults or rifts far below the surface reactivate. These areas are relatively weak compared to the surrounding plate, and can easily slip and cause an earthquake
...

blogs.agu.org...

If this earthquake/s had been caused by tectonic plate movements, in the lithosphere, the quake would have occurred closer to the boundary between the tectonic plates (lithosphere) and the Asthenosphere. Instead this quake occurred further down in the Asthenosphere, which point to the cause being further down and makes it more likely to have been caused by magma pushing upwards than by plate tectonics.

If we continue to see quakes occurring at this depth, it means that area is wakening because more magma keeps on trying to push upwards.

a reply to: Cauliflower

This quake occurred very close to that area so it is possible it is connected to Mount Agung.