Wellington Earthquake warning ! - New Zealand

[The Matrix Traveller]

http://www.ga.gov.au/hazards/earthquakes/earthquake-basics/causes.html

Foreshocks and Aftershocks

Foreshocks are smaller earthquakes that may occur in the same area
as a larger earthquake that follows.

They are caused by minor fracturing of rocks under stress prior to the main break that happens during
the largest earthquake of the series, called the mainshock.

Foreshocks can start up to a year before the mainshock, as was the case before the three large
(magnitudes between 6.3 and 6.7) earthquakes near Tennant Creek in January 1988.

Not all earthquakes have foreshocks, and sometimes a series of similar sized earthquakes,
called an earthquake swarm, happens over months without being followed by a significantly
larger mainshock.

This limits the usefulness, at this stage, of foreshocks in earthquake prediction.

Aftershocks are smaller earthquakes that may occur after the mainshock, in the same area.

They are caused by the mainshock area readjusting to the fault movement, and some may be
the result of continuing movement along the same fault.

The largest aftershocks are usually at least half a magnitude unit smaller than the mainshock
and the aftershock sequence may continue for months or years after the mainshock.

Not all earthquakes have aftershocks – the magnitude 5.6 Newcastle earthquake in 1989
only had one aftershock, which was very small with a magnitude of 2.1.

Occasionally, small earthquakes with magnitudes between 3.0 and 3.5 have aftershocks.

This has been observed in the Dalton-Gunning area, north of Canberra.

[The Matrix Traveller]

Another Shallow Earthquake this time in the Kermadec Islands,
The most northerly territory in New Zealand 33Km Deep and 4.7 Magnitude.

Public Id: 2014p037096
NZDT: Wednesday, January 15 2014 at 6:23:47 am
Maximum intensity ?: moderate
Depth: 33 km
Magnitude: 4.7
Location:  825 km north-east of Whakatane (the Kermadec Islands.)

The most northerly territory in New Zealand

[The Matrix Traveller]

Another Shallow Moderate Earthquake Only 10 Km, Deep and 4.1 Magnitude,
15 km south of Seddon, near Cook Strait.


Public Id: 2014p038697
NZDT: Wednesday, January 15 2014 at 8:37:51 pm
New Zealand region intensity ?: moderate
Maximum intensity ?: Moderate
Depth: 10 km
Magnitude: 4.1
Location:  15 km south of Seddon


The Location of Seddon shown in the Sat. Image below by the RED "Flag".

[The Matrix Traveller]

Just had a very small Earthquake but look it is ONLY 3 Km deep...

It is a Geothermal area but are some these Earthquakes due to Collapsing Caverns within the Earths Crust,
underground tunnels or something else?

Public Id: 2014p040232
NZDT: Thursday, January 16 2014 at 10:15:49 am
Maximum intensity ?: unnoticeable
Depth: 3 km
Magnitude: 1.6
Location:  15 km south of Rotorua

What interests me in NZ is NOT so much the "Magnitude", but rather the Depth these Earthquakes
are occurring at?

http://en.wikipedia.org/wiki/Lake_Rotorua

The lake was formed from the crater of a large volcano in the Taupo Volcanic Zone.
Its last major eruption was about 240,000 years ago. After the eruption, the magma chamber
underneath the volcano collapsed. The circular depression left behind is the Rotorua Caldera,
which is the site of the lake. Several other lakes of volcanic origin are located nearby to the east,
around the base of the active volcano Mount Tarawera.

[The Matrix Traveller]

Another Shallow Moderate Earthquake, 15 Km west of Te Kaha and about 6km Deep
(Very Shallow)

Public Id: 2014p046381
NZDT: Saturday, January 18 2014 at 4:52:16 pm
Maximum intensity ?: moderate
Depth: 6 km
Magnitude: 3.3
Location:  15 km west of Te Kaha


The location of Te Kaha is shonw in the sat. Image marked with a RED "Flag".

"White Island" is north out in the bay, about 60 Km North West,West from Te Kaha....

[The Matrix Traveller]

Yet another Very Shallow Earthquake 20 km south-east of Matawai 5 Km Deep
3.4 Magnitude...

Public Id: 2014p048660
NZDT: Sunday, January 19 2014 at 1:06:45 pm
Maximum intensity ?: moderate
Depth: 5 km
Magnitude: 3.4
Location:  20 km south-east of Matawai


The location of Matawai is marked in the Sat Image below, with a RED Flag.

[The Matrix Traveller]

Another very very Shallow Earthquake 5 Km Deep,
this time in Blenheim just West of "Cook Strait"....  Magnitude 3.5

Public Id: 2014p049754
NZDT: Sunday, January 19 2014 at 10:49:12 pm
Maximum intensity ?: moderate
Depth: 5 km
Magnitude: 3.5
Location:  10 km west of Blenheim


Location shown in the Sat. Map below with a RED "Flag" ...

[The Matrix Traveller]

Another Shallow Moderate Earthquake 8 Km Deep magnitude 3.3
(at the Smaller end of the scale),  25 km West of Christchurch.


Public Id: 2014p050590
NZDT: Monday, January 20 2014 at 6:14:48 am
Maximum intensity ?: moderate
Depth: 8 km
Magnitude: 3.3
Location:  25 km west of Christchurch


Shown below in the Sat. Image.

PEGASUS Bay on the Right...   

[The Matrix Traveller]

We are getting both very, very, Shallow Earthquake and now Deep Earthquakes.
Some Deeper than 300 Km.

Examples of deeper ones...


Public Id: 2014p049150
NZDT: Sunday, January 19 2014 at 5:27:02 pm
Maximum intensity ?: unnoticeable
Depth: 303 km
Magnitude: 3.5
Location:  5 km east of Thames


Public Id: 2014p046376
NZDT: Saturday, January 18 2014 at 4:48:56 pm
Maximum intensity ?: unnoticeable
Depth: 395 km
Magnitude: 3.9
Location:  240 km north of Te Araroa


And examples of the very, very Shallow Earthquakes...

Public Id: 2014p050221
NZDT: Monday, January 20 2014 at 2:58:12 am
Maximum intensity ?: weak
Depth: 8 km
Magnitude: 1.9
Location:  5 km north of New Plymouth (Near Mt. Taranaki)


Public Id: 2014p050107
NZDT: Monday, January 20 2014 at 1:57:07 am
Maximum intensity ?: weak
Depth: 5 km
Magnitude: 1.8
Location:  15 km east of Taupo


Tis next on only 3 Km Deep !

Public Id: 2014p040333
NZDT: Thursday, January 16 2014 at 11:09:42 am
Maximum intensity ?: unnoticeable
Depth: 3 km
Magnitude: 1.6
Location:  20 km south-west of Rotorua


It is normal for us to get many earthquakes each day, but they were usually very deep or very small,
between 1 & 2 Magnitude... The Deeper ones around 3 to 4 magnitude.

Most were/are NOT felt !


Interesting though... We are now getting both Deep and very, very Shallow Earth quake,
some shallower than 5 Km...


I also notice there is Slightly more activity involving small earthquakes around some of the Mountains
in the North Island.

[The Matrix Traveller]

ATTENTION !

Public Id: 2014p051675
NZDT: Monday, January 20 2014 at 3:52:45 pm
Maximum intensity ?: Severe
Depth: 36 km
Magnitude: 6.2
Location:  15 km east of Eketahuna (under Castlepoint)

Eketahuna shown in the Sat. Image below with a RED Flag...

Reports of Damage will keep you informed...

We felt that one very Strong and lasted for some time both sideways and vertical movement, but we are OK...

We will be much further North in a couple of days... In a New Home !

[The Matrix Traveller]

Update !

Public Id: 2014p051700
NZDT: Monday, January 20 2014 at 4:05:48 pm
Maximum intensity ?: light
Depth: 26 km
Magnitude: 3.7
Location:  15 km north-east of Eketahuna


Public Id: 2014p051698
NZDT: Monday, January 20 2014 at 4:04:44 pm
Maximum intensity ?: Moderate
Depth: 22 km
Magnitude: 4.5
Location:  5 km east of Castlepoint


Public Id: 2014p051696
NZDT: Monday, January 20 2014 at 4:04:19 pm
Maximum intensity ?: Moderate
Depth: 30 km
Magnitude: 4.2
Location:  15 km east of Eketahuna


Public Id: 2014p051689
NZDT: Monday, January 20 2014 at 3:59:59 pm
Maximum intensity ?: Moderate
Depth: 5 km
Magnitude: 3.6
Location:  10 km east of Eketahuna


Public Id: 2014p051685
NZDT: Monday, January 20 2014 at 3:58:00 pm
Maximum intensity ?: Moderate
Depth: 23 km
Magnitude: 4.3
Location:  15 km east of Eketahuna


Public Id: 2014p051682
NZDT: Monday, January 20 2014 at 3:56:25 pm
Maximum intensity ?: light   ? ? ?  Light ?
Depth: 69 km
Magnitude: 4.1
Location:  25 km west of Castlepoint


Public Id: 2014p051675
NZDT: Monday, January 20 2014 at 3:52:42 pm
Maximum intensity ?: Strong
Depth: 65 km
Magnitude: 6.3
Location:  10 km north of Castlepoint




Another Shallow Moderate Earthquake !  Only 7 K/m Deep...

Public Id: 2014p051713
NZDT: Monday, January 20 2014 at 4:13:07 pm
Maximum intensity ?: Moderate
Depth: 7 km
Magnitude: 3.4
Location:  10 km west of Pongaroa

The Location of Pongaroa shown in the Sat. Image bellow, with a RED "Flag".

[The Matrix Traveller]

NOTE;  These 2 Earthquakes hit one after the other so it felt like ONE Earthquake hence the Length...

Public Id: 2014p051675
NZDT: Monday, January 20 2014 at 3:52:42 pm
Maximum intensity ?: Strong
Depth: 65 km
Magnitude: 6.3
Location:  10 km north of Castlepoint


Public Id: 2014p051675
NZDT: Monday, January 20 2014 at 3:52:45 pm
Maximum intensity ?: Severe
Depth: 36 km
Magnitude: 6.2
Location:  15 km east of Eketahuna (under Castlepoint)

The 2nd one started 3 second after the beginning of the 1st earthquake...

A double whammy....    

[Flux]

Good thing they are deep.
Would be a bit more worried if they were shallow and centred closer or under the city

Having those two so close to one another is odd?

[The Matrix Traveller]

Apparently there has been damage we should get it all on the News tonight...

Nothing on TV as yet ? ? ? apart from reporting it was a Sever Earthquake...

We only felt the 1st 2 Earthquakes here haven't felt any others.

I'm glad I'm shifting to the North of the North Island...

And yes you don't often get 2 earthquakes together separated by a few K/m's... a little odd.

[The Matrix Traveller]

http://tvnz.co.nz/national-news/photos-quake-hits-lower-north-island-5803985

Photos: Quake hits lower North Island...


http://tvnz.co.nz/news-video


http://tvnz.co.nz/national-news/6-2-earthquake-cuts-power-phones-stops-trains-5803966?autoStart=true