NZ earthquake 14.11.16 - Mag 7.8

[Astronuc]

Some of the New Zealand sea bed lifted over 19 feet (or ~6 m) during earthquake.
https://www.yahoo.com/news/watch-zealand-sea-bed-lifted-010426406.html

 

[davenn]

Some of the New Zealand sea bed lifted over 19 feet (or ~6 m) during earthquake.
https://www.yahoo.com/news/watch-zealand-sea-bed-lifted-010426406.html

seriously impressive huh

 

[StevieTNZ]

http://www.newshub.co.nz/nznews/ear...ll-retailers-2016112619#.WDk8AK6zmBY.facebook

The cinema and some of the car park at Queensgate mall is to be demolished, which is expected to take 2 - 3 months. Only half of the shops in the mall are open; the area near the cinema cordoned off for safety as they demolish the damaged areas. Sucks because those retailers miss out on customers doing Christmas shopping. I am quite surprised that the said areas need to be demolished in the first place, despite no building being completely earthquake proof. It makes me wonder how well these buildings are built.

I went into Wellington on Friday evening. Noticed cracks here and there on the footpaths and roads. However, the city was quite lively, as one would expect even if no earthquake had occurred, on a Friday evening.

 

[Astronuc]

Geonet published some information on ground acceleration. Several location has about 1 g, with a maximum of about 1.3g. A station in Waiau had an alarming reading of 3g, but apparently it's suspect.

PGA Information (http://info.geonet.org.nz/display/quake/2016/11/16/Shaking+from+Kaikoura+Earthquake)
The strongest ground shaking measured by GeoNet instrumentation so far was a peak ground acceleration of (PGA) 1.3g in Ward. Since publishing this story, data has come in from the WTMC station in Waiau with a vertical PGA over 3g. As yet, we're unsure if this is a reliable value, it may have been contaminated by other effects.

http://info.geonet.org.nz/display/q...preview=/20545678/20545833/PGAmap_M7.8_V4.png

 

[StevieTNZ]

An interesting article about this earthquake -- https://phys.org/news/2018-11-huge-quake-edges-zealand-islands.html

 

[davenn]

An interesting article about this earthquake -- https://phys.org/news/2018-11-huge-quake-edges-zealand-islands.html

thanks :)

 

[davenn]

Some of the New Zealand sea bed lifted over 19 feet (or ~6 m) during earthquake.
https://www.yahoo.com/news/watch-zealand-sea-bed-lifted-010426406.html

I finally got to see this for myself in March 2019 when I did a visit back to NZ. My son and I did a
road trip up to Kaikoura and then further up the coast. Road and rail damage is still being repaired
after the many landslips of the hillsides, slumping of roads and where faults crossed roads.

This is from the north side of the Papatea Fault, looking south. The fault runs along the base of that
that ridge where all the landslips can be seen.

3 images of the coastal section showing the Papatea Fault

looking along strike ... total vertical offset here varies from ~ 1.5 to 2 metres
The vertical offset maxed out at around 2.5 metres. It was the horizontal offset that was
up to 19 metres

everything here that has rain water pools on it, everything on the far side of the uplifted
side of the fault, used to be under water at high tide.

My pic's show that there has been considerable weathering of the fault scarp in the 2.5 years
between when the quakes occurred and when I visited

 

[davenn]

some more pic's

raised beach

3 images showing road restoration. Most of the headlands, like in the photos, had serious landslips
associated with them

cheers
Dave