James Kaufman will report today.
Ladies and gentlemen, we've had an aftershock.
The Philippines, under several active volcanoes,
really near or on a plate tectonic boundary,
right under, right under the 7.4 magnitude earthquake we had yesterday.
This one came in very strong as well at a 6.7 magnitude.
Came in as a 7 on the DYFI, a 6 on the ShakeMap.
It was an associated tsunami warning.
They estimated that it was around 61.2 kilometers of depth.
Again, this was an aftershock
of the 7.4 magnitude earthquake that we had yesterday.
The same exact location.
Jumping over to volcanoes and earthquakes.com.
You can see the two quakes, the 7.4 and the 6.7 here,
right on top of one another.
You can see active volcanoes to the north,
within the northern part of the quake,
and we see active and waiting volcanoes to the south as well.
You can also see it's on a plate tectonic boundary there in red.
So what do we have? A 6.7 main source USGS.
The Germans came in at 6.7 as well. We came in at 61
kilometers. They came in at 60 kilometers.
We also have the French chime in. A magnitude 6.5,
80 kilometers of depth. Always chime in with the weakest numbers.
Let's get some detailed
Let's get some detailed information on this quake.
To quickly look at exactly what it is,
there are a bunch of plate boundaries going through this area.
And as expressed,
we have several volcanoes erupting to the north and several volcanoes
erupting to the south.
Looks like we've had more than just these two earthquakes,
but these are the two main
earthquakes we've had in this area.
Just off to the west-southwest, we also had a 6.3 magnitude.
Right where we had a 6.0 magnitude earthquake just yesterday as well.
Right on a plate tectonic boundary,
really one that's got a lot of problems.
And right under several erupting volcanoes.
Over to VolcanoDiscovery.com taking a look at that aftershock.
The aftershock of the 7.4 magnitude being a 6.7 magnitude earthquake,
still being called very strong.
And, of course, it happened today, Friday, October 10th.
And this one popped up exactly where the 7.4 did.
It looks like we've got some movement, all that plate there.
And you can see these two volcanic ranges,
these will really come up through this area here.
This aftershock was originally rated as a 6.9 magnitude earthquake.
That's some aftershock.
Here we have some earthquake details,
USGS being the main reporting agency.
Let's see 61 kilometers of depth and it's
released about 10.6 atomic bombs worth of energy.
So you can see there's a huge difference between a 6.7
and a 7.4 as far as the strength released
and the strength of the quake itself. All right up next we'll compare
Earthquake data from different reporting agencies.
It looks like the USGS came in first with a 6.7, 61 kilometers,
followed by the Germans with 6.7, 62 kilometers,
followed by the French with 6.57.
Hmm.
And that was at 80 kilometers, a little bit deeper.
And that was the Australian community with 6.8,
72 kilometers of depth.
This is showing
so far that many reporting agencies came in at 6.9 originally, and the
Indonesian agencies came in at 6.9,
like Earthquake, and at 56 kilometers in depth.
So many other reporting agencies started out with a 6.9,
and the Indonesian government
decided they weren't downgrading theirs to the 56 kilometers in depth.
We have the Incorporated Research Institution for Seismology,
a 6-7-6-1 Cromley-Bank Debt,
and then we have the Philippines, which I don't know.
They called it out as a 6.8 magnitude earthquake 68 kilometers depth,
and finally the Europeans came in at that original 6-9,
a default depth of 10 kilometers.
You can tell by the asterisks that a depth given
by some farmers often means that the depth of an earthquake cannot
be determined with sufficient accuracy, as is the case here.
Now, we do have a tsunami warning with this earthquake.
Let's see if a tsunami was created, shall we?
All right, over to the National Data Buoy Center.
We have two buoys in event mode.
We have station 5245.
in station 52403. Take a look at both of those.
Let's see the very small event here.
We'll open up the details for that.
And then we'll take a look at station 52403.
And we can see the event here in red.
Also a very small event.
Open up the details for those. And let's take a look at
What type of tsunami was created?
All right this was the event down here in red.
You see it on the water column table here in red
and when we zoom in we see it was a fairly long event believe it
or not. It lasted over three
minutes which is unusual.
However, however we didn't have a lot of movement whatsoever
In the water column depth, the height,
this was a very, very small.
Well, anomaly, we can't really call this a
tsunami. We'll call it an anomaly. It looks like it was
a little bit larger than a half of centimeter.
Although, again, it lasted over three minutes.
That was station 52405. Let's see what 52403
looks like. Alright, here we see the same thing.
The event lasted over, over three minutes.
A very long event.
It looks much larger on the water column table
and this blue must be much closer to the
earthquake itself. Here we have movement.
Let's see, it looks like about six centimeters. So
So, not a real big tsunami,
but I guess it does qualify six centimeters of movement.
Again, long term though, in my opinion, three plus minutes.
Maybe a better term is event instead of tsunami here again.
And here we can see those exact six centimeters
from 4.5 to 5.1 right there.
Let's get a summary of this 6.7 magnitude earthquake that,
well, was really an aftershock of a 7.4.
We had an associated tsunami warning, turned out
to be about 6 centimeters, and came in as a 7 on the DYFI,
a 6 on the quake map, about 61 kilometers of depth.
Again, that's on a plate tectonic boundary,
and we have active volcanoes to the north and south,
right there in the Philippines, so very active region.
All right, God bless, folks.
Stay safe out there.
We just had another earthquake pop off,
and we'll be following up with another report.