NZ rocking in the north now
East Cape Ridge again
Public ID 2016p894629
Universal Time November 27 2016, 0:18:39
NZ Daylight Time Sun, Nov 27 2016, 1:18:39 pm
Depth 61 km
Location 105 km north-east of Te Araroa
Latitude, Longitude -37.08, 179.31
It never stopped there on East CApe, but the offshore ones died away for quite a while.
Public ID 2016p892721
Universal Time November 26 2016, 7:21:42
NZ Daylight Time Sat, Nov 26 2016, 8:21:42 pm
Depth 13 km
Location 35 km north of Wairoa
Latitude, Longitude -38.72, 177.46
947 felt reports
my partner thought she felt that one
Porangahau and Cape Turnagain on the lower Hawkes Bay area still swarming
(slow quake they say)
Update: Saturday 26 November
As of Saturday 26th November, 225 earthquakes have been recorded in the Porangahau region since the Kaikoura Earthquake. Most of the earthquakes have
been smaller than magnitude 3.
The Kapiti-Manawatu slow-slip event (my area)has involved movement across the Hikurangi subduction zone plate boundary of between 5-7cm,
equivalent to a magnitude 6.8 earthquake in the last two weeks.
I'm going to have to do a page on that one, its too important not to. The maps are created using GPS stations , not seismographs, so its not really
something I am able to download the raw data for.
I first mentioned it on the 22nd
latest slip map
edit on 1100000033033016 by muzzy because: (no reason given)
I just spent an hour reading up on the GPS data from Geonet, I think I kind of "get it"
here is the page.
by writing a query you can get a graph plot form each station or multiple stations.
As a test/example I have taken KAPT (Kapiti) which is just offshore from me on the West Caost, and PORA (Porangahau) over on the East Coast where the
swarm is happening.
(I marked the map, those are not official Geonet measurements)
From what I can gather from the 2 graphs is that Kapiti has moved (-75.25 minus -57.16) = -18.09mm east
and Porangahau has moved (-91 minus -54.88) = -36.12mm east
Is this how they work the shift out? I'm not sure, just being logical about it.
So the east coast is moving at twice the rate of the west coast,
surely this mean the Wairarapa is being stretched apart??
makes sense as the Wairarapa is a Graben anyway.
Could this mean Wairarapa is in for a sudden jolt? will it keep stretching then snap? or will it just keep getting wider and wider?
I must learn more about this GPS stuff, and how to go back and get graphs from Jan 2014 when the Eketahuna 6.2 struck.
the more you look into this earthquake stuff the more questions there are.
edit on 1100000033033016 by muzzy because: (no reason