Quake Watch 2012

“@BreakingNZ: #EQNZ UPDATE -- Mt. Ruapehu and and White Island have been raised to Alert Level One, showing signs of volcanic unrest.”

Originally posted by bellagirl
“@BreakingNZ: #EQNZ UPDATE -- Mt. Ruapehu and and White Island have been raised to Alert Level One, showing signs of volcanic unrest.”

Both these volcano's have been on Alert Level One for some time - greater than a year. I think they got the info wrong.

reply to post by DonaldD

Where are you at then?
What freaked me was waking up almost in a sweat, then within seconds the P wave sound, unmistakable noise like a subway train pressure wave coming when you are standing at a station.
Didn't hear any booms.

Quite a bit of side to side wobbling after the strongest shaking, that gives an indication of distance ( quite a way off)
144km from me

ok you did post a link so no no point in asking!

IRIS SNZO siesmograph of it

LISS SNZO graph probably shook the machine right off the base plate

reply to post by DonaldD


Like you, I heard a rumbling at about 9:30 as well - and i'm south of auckland! I heard it above the radio - thought it was a logging truck at first (but no traffic came past) - popped my head out the door and could still hear it briefly, then it stopped. I've never heard an earthquake boom before, but it did make me think that this was what it would sound like.

Originally posted by wanda
reply to post by DonaldD

 

Like you, I heard a rumbling at about 9:30 as well - and i'm south of auckland! I heard it above the radio - thought it was a logging truck at first (but no traffic came past) - popped my head out the door and could still hear it briefly, then it stopped. I've never heard an earthquake boom before, but it did make me think that this was what it would sound like.

Okay phew, I live south of auckland too - did your eardrums vibrate too?

Originally posted by muzzy
reply to post by DonaldD

 

Where are you at then?
What freaked me was waking up almost in a sweat, then within seconds the P wave sound, unmistakable noise like a subway train pressure wave coming when you are standing at a station.
Didn't hear any booms.

Quite a bit of side to side wobbling after the strongest shaking, that gives an indication of distance ( quite a way off)
144km from me

Strange heard this before the actual earthquake - wondered if it was a geo-stress sound ?

That shake shook me up! Not much sleeping happening here now. Im outskirts of Christchurch and our hanging lights were swinging, the lounge door was rattling and hubby and I both looked at each other and thought uh oh, was that town getting hammered again!! Interesting that we felt it so strongly given how far away we are.

LATEST: New Zealand has been shaken from Bay of Plenty to Canterbury by a 7.0-magnitude earthquake, which hit off the coast of the lower North Island, GNS Science says.

GeoNet reported the earthquake hit at 10.36pm on Tuesday. It was centred 230km deep and was 60km southwest of Opunake.

Some people were reported to have evacuated to higher ground on the Horowhenua coast, however a Civil Defence spokesman said there had been a low tsunami risk as the quake struck so deep.

MORE INFO

reply to post by DonaldD


My son just told me it was more like 10:30 when it happened. I cant say my eardrums got it, but i could feel it as much as hear it. that's what made me turn the radio off and go outside to hear it better. The description of being like a train coming was pretty close to what i experienced. (hence thinking it was a laden truck) Interesting!

reply to post by muzzy


GeoNet just came in from the MagmaXML file @ 7.148

Definitely seems high to me

Potsdam have 5.8 magnitude unspecified - manually revised

SCARDEC (GeoAzur) have 6.3 Mw

reply to post by SpaceJockey1

Wow really?
Guess we missed the sirens
(there are no sirens set up here on the Kapiti Coast)
Hmmm never thought to put the radio on for a tsunami warning

4.1 aftershock?
beta.geonet.org.nz...

Originally posted by wanda
reply to post by DonaldD

 

My son just told me it was more like 10:30 when it happened. I cant say my eardrums got it, but i could feel it as much as hear it. that's what made me turn the radio off and go outside to hear it better. The description of being like a train coming was pretty close to what i experienced. (hence thinking it was a laden truck) Interesting!

Hey thanks for letting me know of your experience. I wasn't clock watching at the time, though I don't think it was 10:30. Did think about recording the sound though... wish I had now.

Interesting though that we most likely heard the same sound.

I'm in Pahiatua and it was 10.40pm - low noise but hell did it seem to last - I got such a shock I've just crawled out from under the table. That was one big rattle!
I've got my pillows torch and water under the table ready for the aftershock which I truly hope doesn't come.

reply to post by quedup


Pretty scary experience. Hopefully it will be a quiet night!

reply to post by DonaldD


I too scared to go to bed - hubby is in Paraparaumu and slept through it. lol I always said he was dead when he went to sleep. Couch for me tonight!

reply to post by quedup


Hi quedup -
i hope you have a quiet night - i'd be under the table too! I imagine you'll not be the only one "camping out" tonight. stay safe, sleep well.

reply to post by quedup


I would be in the same boat and not want to sleep either. Scary stuff these earthquakes of late.

I think I'll give the wine a miss - though it's very tempting lol - thanks for the concern

reply to post by PuterMan

Won't know till the morning when the GNS seismologists have another look at it I guess

Heres how I posted it on Auto NZ Quakes

6.5-2012-07-03T10:36:12.710Z
Ref: 2012p498491
Lat, Long: -39.9684258, 173.6294403
Magnitude: 6.5
Depth: 254
Location: Tasman Sea, SW of Opunake
Status: reviewed
Source: GeonetRapid
CONFIRMED AS;
REF: 3732830
LAT/LONG: -40.0226, 173.75609
UTC: 2012/07/03 10:36:15.54
NZST: 2012/7/03 22:36:15.54
DEPTH: 230 km
MAG: 7.148 ML
LOCATION: Tasman Sea, os SW of Opunake
Reported as Felt: Yes
Energy Released: 795,075.414 tonnes of TNT

Depth saved us