Magnitude 5.7 Earthquake - Christchurch, New Zealand

[StevieTNZ]

http://www.stuff.co.nz/national/76868658/live-57-earthquake-hits-christchurch

About 70 homes are without power and the cellular phone network is under pressure following a 5.7 earthquake near Christchurch. The "severe" quake hit at 1.13pm on Sunday.

Not Christchurch again. :(

http://www.geonet.org.nz/quakes/region/newzealand/2016p118944

 

[fresh_42]

When you need a news channel ... they are busy celebrating Scalia ...

 

[StevieTNZ]

Parts of Sumner cliff have collapsed into the ocean: http://www.nzherald.co.nz/nz/news/video.cfm?c_id=1&gal_cid=1&gallery_id=157712

Damage to some buildings, including the ChristChurch Cathedral which is being rebuilt from the 22 February 2011 earthquake; and liquefaction.

 

[Astronuc]

http://www.christchurchquakemap.co.nz/

I was following the quakes around Christchurch since 2010, and it seems things were quieting down during 2013-2015.

USGS - http://earthquake.usgs.gov/earthquakes/eventpage/us20005019#general_region
Date/time 2016-02-14 00:13:43 (UTC)
Lat 43.503 °S, Long 172.843 °E
Depth=8.2 km (5.1 mi)

 

[StevieTNZ]

USGS - http://earthquake.usgs.gov/earthquakes/eventpage/us20005019#general_region
Date/time 2016-02-14 00:13:43 (UTC)
Lat 43.503 °S, Long 172.843 °E
Depth=8.2 km (5.1 mi)

Both Geonet and Christchurch Quake Map websites are reporting a depth of 15km.

 

[Astronuc]

Both Geonet and Christchurch Quake Map websites are reporting a depth of 15km.

I saw that. I would expect some uncertainty.

Another website I have followed is Canterbury Quake Live - http://www.canterburyquakelive.co.nz/
They have a nice summary since the 7.1 mag Darfield earthquake.

CQL puts the depth as 15.39 km
http://www.geonet.org.nz/quakes/region/newzealand/2016p118944

 

[cosmik debris]

http://www.christchurchquakemap.co.nz/

I was following the quakes around Christchurch since 2010, and it seems things were quieting down during 2013-2015.

USGS - http://earthquake.usgs.gov/earthquakes/eventpage/us20005019#general_region
Date/time 2016-02-14 00:13:43 (UTC)
Lat 43.503 °S, Long 172.843 °E
Depth=8.2 km (5.1 mi)

Yes it's been a while since we had anything significant so yesterday's series was quite a surprise. Fortunately no injuries and no serious damage, all schools and the University are open today.

Cheers

 

[StevieTNZ]

Yes it's been a while since we had anything significant so yesterday's series was quite a surprise. Fortunately no injuries and no serious damage, all schools and the University are open today.

Cheers

Minister Brownlee says yesterday's earthquake was expected, but of course no one can predict when they will hit. http://www.stuff.co.nz/national/pol...nister-Gerry-Brownlee-says-shake-was-expected

 

[davenn]

Yup, M 5.8 (USGS) (5.7 GNS) is a significant event, specially so close to a large populated area
where building ( those left standing from the earlier events) have already been stressed

my daughter, living on the south side of central Christchurch, said it was the strongest she had felt since the 2011 events ... It was a "get into doorway " sized shake, she told merecorded it well on my seismo ...

will still be visible for a few more hours ( ~ 7 - 8)Dave

 

[davenn]

Minister Brownlee says yesterday's earthquake was expected, but of course no one can predict when they will hit. http://www.stuff.co.nz/national/pol...nister-Gerry-Brownlee-says-shake-was-expected

a bit of a silly comment by him ... as that applies to any active region in NZ
Significant events are "expected " from all the active fault zones and that encompasses some ~ 70% of the NZ regionDave

 

[StevieTNZ]

There is a high possibility Christchurch could be hit with another earthquake in the next 12 months following Sunday's 5.7 magnitude quake.

According to new modelling completed by GNS Science, there is a 63 per cent chance of another 5 to 5.9 earthquake in the Canterbury region.

Before Sunday's quake the figure was 49 per cent.

https://nz.news.yahoo.com/top-stories/a/30819309/high-chance-of-another-strong-christchurch-earthquake/

 

[StevieTNZ]

This drone footage shows the extent of the cliff collapse yesterday -- https://www.facebook.com/NewshubNZ/videos/vb.97548423605/10154006032688606/?type=2&theater

 

[Greg Bernhardt]

Tough road for Christchurch!

 

[StevieTNZ]

Not related to Christchurch, but this earthquake was felt by some in Christchurch before -- https://nz.news.yahoo.com/a/30830261/severe-earthquake-south-of-new-zealand/

"It hit at 10km depth at 8:28am and a number of felt reports have been logged since then in Invercargill, Dunedin and as far north as Christchurch." Magnitude 6.0.

I am sure today in Parliament a statement will be made about the Christchurch earthquake.

 

[davenn]

Not related to Christchurch, but this earthquake was felt by some in Christchurch before -- https://nz.news.yahoo.com/a/30830261/severe-earthquake-south-of-new-zealand/

"It hit at 10km depth at 8:28am and a number of felt reports have been logged since then in Invercargill, Dunedin and as far north as Christchurch." Magnitude 6.0.

I am sure today in Parliament a statement will be made about the Christchurch earthquake.

yeah another decent one ... .I saw it starting to arrive on my seismo 30 mins before I left home for work
2 events on the seismo currently, 5.9 Tonga and the M 6.2 Auckland Isl reg. South of the South Island of NZ

EDIT ... meant to also comment ... This event has produced one of the larger T-Wave signals I have so far recorded. very obvious on the geophone E-W channel @ 19:48 - 19:50 UT

Dave

 

[StevieTNZ]

http://www.inthehouse.co.nz/video/41507

Questions about the Christchurch earthquakes posed to the Minister for Building and Housing.

 

[Astronuc]

M6.2 - 219km NW of Auckland Island, New Zealand
http://earthquake.usgs.gov/earthquakes/eventpage/us200050ei#general_region

Lat. 49.067 °S, Long. 164.456 °E
depth = 10.0 km (6.2 mi)

It seems the plate motion is picking up.

 

[davenn]

M6.2 - 219km NW of Auckland Island, New Zealand
http://earthquake.usgs.gov/earthquakes/eventpage/us200050ei#general_region

Lat. 49.067 °S, Long. 164.456 °E
depth = 10.0 km (6.2 mi)

It seems the plate motion is picking up.

see seismogram above

 

[StevieTNZ]

From last night:

Another strong aftershock has rocked Christchurch.

The 4.3 magnitude earthquake hit at 7.17pm. It was 20km deep, centred 10km northeast of the central city.

http://www.stuff.co.nz/the-press/news/77050033/Strong-4-3-magnitude-earthquake-rocks-Christchurch

 

[Astronuc]

From last night:

http://www.stuff.co.nz/the-press/news/77050033/Strong-4-3-magnitude-earthquake-rocks-Christchurch

http://www.canterburyquakelive.co.nz/QuakeSearch/?Location=-43.559800,172.766800

Just a bit NNW of the 5.75. It seems that fault system is becoming more active.

 

[StevieTNZ]

http://www.canterburyquakelive.co.nz/QuakeSearch/?Location=-43.559800,172.766800

Just a bit NNW of the 5.75. It seems that fault system is becoming more active.

I am guessing that is the Mt Cook earthquake from today: https://nz.news.yahoo.com/a/30876689/earthquake-hits-mt-cook/

I'll be down in Christchurch 11-13 March. Hope no earthquakes occur while I am there!

 

[StevieTNZ]

In an hour, at 12.51pm NZT, it will mark the 5th anniversary of the deadly 2011, February 22 earthquake that struck Christchurch -- https://en.wikipedia.org/wiki/2011_Christchurch_earthquake

 

[davenn]

I am guessing that is the Mt Cook earthquake from today: https://nz.news.yahoo.com/a/30876689/earthquake-hits-mt-cook/

No it was the M 4.3 aftershock a couple of km's NW of the M5.8

The Mt Cook event is on a different fault, far away

I'll be down in Christchurch 11-13 March. Hope no earthquakes occur while I am there!

have fun, a high probability that you may feel several smaller events, there's still many of them occurring each day

Dave

 

[StevieTNZ]

Felt this one, near Seddon, earlier: https://nz.news.yahoo.com/a/30884931/severe-earthquake-strikes-near-seddon/

 

[davenn]

Felt this one, near Seddon, earlier: https://nz.news.yahoo.com/a/30884931/severe-earthquake-strikes-near-seddon/

only just recorded that one on my seismo here in SydneyD

 

[StevieTNZ]

And it seems there was another strong earthquake down in Christchurch early this morning:
http://www.stuff.co.nz/the-press/ne...e-quake-wakes-sleeping-christchurch-residents

Christchurch residents have described hearing a roar before an early morning quake on Monday "hit like a freight train", shaking them from their beds.

The 4.3 magnitude earthquake hit near Cashmere, just five kilometres south of the central city, at 3.32am.

It hit at a depth of just five kilometres. Geonet listed the quake as "strong".

Eeeckk, and I am down in Christchurch 11 - 13 March.

 

[Astronuc]

M 4.3 - 14km (9 mi) ESE of Christchurch, New Zealand (moderate) USGS puts it under Godley Head Farm Park, near the location where the cliffs collapsed, but the Canterbury Quake site puts it 5 km under Christchurch north of Cashmere Rd. That's quite a difference.

Time: 2016-02-28 14:32:40 UTC
Location: Lat 43.584°S, Long 172.803°E
Depth: 10.0 km - Shallow

It would definitely feel strong if one was close to the epicenter.

29 Feb 2016 3:32am Depth 5.00 km Mag 4.30
http://www.canterburyquakelive.co.nz/Browse/?reference=quake.2016p158394

 

[cosmik debris]

29 Feb 2016 3:32am Depth 5.00 km Mag 4.30
http://www.canterburyquakelive.co.nz/Browse/?reference=quake.2016p158394

That one was quite a jolt, seeing as it was under the city and only 5kM down, the accelerations were quite high for a seemingly low magnitude. Woke me and the cat up, it was short though so I didn't make it out of bed.

 

[davenn]

M 4.3 - 14km (9 mi) ESE of Christchurch, New Zealand (moderate) USGS puts it under Godley Head Farm Park, near the location where the cliffs collapsed, but the Canterbury Quake site puts it 5 km under Christchurch north of Cashmere Rd. That's quite a difference.

which is why I don't rely on the USGS when it comes to event locations well outside their high density networks
and that goes for any event outside the USA ... mainland USA, Hawaii and Alaska have great high density networks and have no problems accurately locating events within those regions
For the rest of the world, the need to rely on networks within the countries concerned is important

the USGS/NEIC have one station within NZ, in Wellington as part of its WWSSN the next closest ones are more than 1000km away

Dave

 

[davenn]

That one was quite a jolt, seeing as it was under the city and only 5kM down, the accelerations were quite high for a seemingly low magnitude. Woke me and the cat up, it was short though so I didn't make it out of bed.

yes, my daughter in Riccarton felt it quite well too ( within 10km of the epicentre)