WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH | |
| Tauranga (OP) User ID: 8916997 12/08/2012 03:18 AM ![]() Report Abusive Post Report Copyright Violation | |
| Kiwi25 User ID: 29283814 12/08/2012 03:24 AM Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH Hi Tauranga, You miss out because you are on a concrete slab..:-). A friend near here also slept thru it.. she is on a slab foundation. We were in bed, and it was long and strong.. we were just lying there talking about it when towards the end there was an increase and a big lurch and things started falling of the bookshelf.. alarm clock, a few books and ornaments.. its a tall shelf and was rocking. ( it is tied to the wall..) and that go us jumping out of bed to try and save things.. but it stopped. Interesting that you see a building pattern. I will pay more attention. Certainly got a wakeup call....:-). |
| Tauranga (OP) User ID: 29326855 12/08/2012 04:14 AM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH Swarm of quakes rattles New Zealand [link to www.stuff.co.nz] This morning's magnitude 5.8 quake was felt widely throughout the country not only because of its size but because of the tectonic plate it happened on. The 5.8 quake struck at 7.19am and was felt as far north as Kerikeri and as far south as Southland. It was 175 kilometres deep and centred 20km south east of Tokoroa, in the region of the Pacific Plate, one of the most active tectonic belts in the world. It is not unusual for quakes of this magnitude and depth to occur on that plate boundary in the Tokoroa region, GeoNet duty officer, seismologist Anna Kaiser, said. It was typical for such quakes to be felt throughout the country and particularly on the east coast, she said. "It's typical with these types of earthquakes because it's occurring within the subducting slab. The waves travel along this material which means it can be felt at the surface or throughout quite a wide area." A 7.3 quake which triggered a one-metre high tsunami in Japan yesterday was understood to also on the Pacific plate margin, Kaiser said. New Zealand's 5.8 quake has been followed by at least 10 smaller tremors in the same region. Nearly 10,000 people reported feeling the 5.8 quake on the GeoNet website. A Greymouth resident described the quake as a "constant rolling motion", which lasted for about 10 seconds. Amber, who is based in Hawke's Bay, said her kids rolled a marble down the hallway, so she assumed the piles had moved as well as the house. Peter Fraser, based in Belmont Hills in Wellington, said it felt like a digger had gone past the house, and Laurel Baird, in nearby Tawa, said it felt like a huge truck at first, but then got "louder and louder". "Then the rolling began. It felt like a long time," Baird said. The quake wasn't described as violent, but people have said beds shook against walls, some ornaments fell from shelves and they were frustrated at being awake - having hoped for a Saturday sleep in. The magnitude 5.8 quake was one of dozens of quakes, ranging from magnitude 1.2 to 5.8, so far today, according to GeoNet. Most would have been unnoticed but GeoNet described some as weak and the 5.8 as moderate. GNS head of volcanology Gill Jolly said there was no concern that this morning's quakes would increase the risk of an eruption at either Ruapehu or Tongariro. A swarm of earthquakes beneath Tongariro preceded the August eruption and a series of quakes have also occurred near Ruapahu in recent months, but seem to be dying down, Jolly said. |
| Tauranga (OP) User ID: 29326855 12/08/2012 04:19 AM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH Hi Tauranga, You miss out because you are on a concrete slab..:-). A friend near here also slept thru it.. she is on a slab foundation. Quoting: Kiwi25 We were in bed, and it was long and strong.. we were just lying there talking about it when towards the end there was an increase and a big lurch and things started falling of the bookshelf.. alarm clock, a few books and ornaments.. its a tall shelf and was rocking. ( it is tied to the wall..) and that go us jumping out of bed to try and save things.. but it stopped. Interesting that you see a building pattern. I will pay more attention. Certainly got a wakeup call....:-). hiya kiwi25 i was awake though, and i am surprised my wooden deck adjacent to my room wasnt moving, and that my dog didnt even seem to be aware of the quake at all do you know how many tauranga people felt it? nobody in town mentioned it today.. |
| Tauranga (OP) User ID: 29326855 12/08/2012 04:25 AM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH 5.8 quake jolts people awake [link to www.stuff.co.nz] A magnitude 5.8 quake was felt widely throughout Manawatu and much of New Zealand this morning and was followed by a swarm of smaller tremors. The larger quake struck at 7.19am. It was 175 kilometres deep and centred 20km south east of Tokoroa. Did you feel the quake? Click here to send us your story It was felt widely throughout New Zealand, particularly in the central North Island and in Wellington, where people reported it as being moderate or strong, GeoNet reported. It was felt as far north as Kerikeri and as far south as Southland, where it was described as "light". Nearly 10,000 people have reported feeling the quake on the GeoNet website. Rachael Hurrell wrote on the Manawatu Standard Facebook page: "Felt in Palmy. I always fly outta bed coz you never know if it will intensify. Paranoid with good reason, we moved from Chc for less action!" Mark-Leonard-Jones wrote: "It felt like one earthquake with 2 big waves... quite a decent shake... made me nervous thats for sure." The quake wasn't described as violent, but people have said beds shook against walls, some ornaments fell from shelves and they were frustrated at being awake - having hoped for a Saturday sleep in. The magnitude 5.8 quake was one of 28 quakes, ranging from magnitude 1.2 to 5.8, so far today, according to GeoNet. Most would have been unnoticed but GeoNet described some as weak and the 5.8 as moderate. Five of those quakes have been centred near Tokoroa. A 3.7 tremor which struck just four minutes after the 5.8 quake, was also widely felt throughout the North Island. It was centred 15km east of Tokoroa and was 198km deep. Five more quakes have followed, another magnitude 2.6 quake was centred just north of Tokoroa and a 2.9 quake which struck at 7.31am was 15km south of Tauranga. Smaller quakes were centred near Whanganui and Murupara. |
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| Tauranga (OP) User ID: 29326855 12/08/2012 05:01 AM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH Your welcome! When I saw you guys hadn't heard from, I got extra worried, too. She doesn't always check in on Tiny Green's thread, but she always does on El Q's or Gabe's. hiya guys sorry i couldnt post, i only heard about the quake at lunchtime, as i was leaving for the city, and when i tried to check it out on the way to the city i discovered my mobile phone was almost completely flat i was trying to check the main thread that was going about the quake, but my phone was so flat, i couldnt post, because it would have used the last tiny amount of power, and gone dead if i had tryed to post i am only this evening gathering info about this quake i have been predicting a large quake for a week or so, because of how the volcano graphs have been looking we have a serious volcanic situation developing here in nz this quake is directly related to the taupo supervolcano, which is waking up!! much love to all you wonderful friends, i am so sorry you got worried about me we didnt even feel the quake, despite the fact that the epicenter was only 44kms from tauranga! it has been pointed out to me on my thread that the reason we didnt feel it was because my house has a concrete floor but i have a large wooden deck adjacent to my room, and i would have expected it to have been moving, and therefore to have woken my dog but my dog didnt notice it either, because if she had, she would have alerted me, she was asleep in my bedroom at the time what do you guys know about concrete floors/earthquakes?? |
| old guard User ID: 1405158 12/08/2012 09:24 AM Report Abusive Post Report Copyright Violation | |
| Luisport User ID: 29336800 12/08/2012 09:31 AM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH John Seach@johnseach 18h #Maroa volcano, New Zealand. Magnitude 6.3 earthquake hit 16 km north of Orakei Korako geothermal area on 8 Dec 2012. [link to mobile.twitter.com (secure)] |
| Luisport User ID: 29336800 12/08/2012 09:41 AM ![]() Report Abusive Post Report Copyright Violation | |
| Ozark User ID: 28705218 12/08/2012 10:14 AM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH Glad to see you are ok! Been waiting to see you on! Be safe sister! love & light~~~~~~ Favorite quote or Haiku, Nikos Kazantzakis " I said to the Almond tree, "Sister, speak to me of God..." And the Almond tree blossomed... |
| Luisport User ID: 29336800 12/08/2012 10:18 AM ![]() Report Abusive Post Report Copyright Violation | |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:03 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH Whoa, I dreamed about all of this when i was napping around 11 pm est. Had no idea anything was actually going on over there. No proof to show anyone but I'm pretty weirded out right now. Quoting: Anonymous Coward 3570662 hi AC there are lots of people all over the world having the same doom dreams as each other including lots of children there must be a reason for this either it is collective unconscious awareness on a spiritual level of what is to come to pass soon or it is some sort of collective programming that is being implemented by tptb, via our dreams.. i am unsure which it is, but i do think that tptb are very likely using the whole 2012 doom thing to their advantage, to herd up the sheeple into frightened submission the 2012 thing is much bigger than just the mayan prophesy which i believe was prophesicing massive changes to our sun and therefore our solar system, etc but it wasnt just the mayans who went to immense trouble to leave a message to humanity at this time, other cultures also tried to leave timeless warnings for us to recognise now |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:05 PM ![]() Report Abusive Post Report Copyright Violation | |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:11 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH John Seach@johnseach Quoting: Luisport 18h #Maroa volcano, New Zealand. Magnitude 6.3 earthquake hit 16 km north of Orakei Korako geothermal area on 8 Dec 2012. [link to mobile.twitter.com (secure)] hiya luis neat to hear from you, too thanks for this, i am looking forward to reading what john seach has to say volcanic developments are happening here very quickly now thank you also for your constant support of this important thread, brother xxx |
| nibiflex User ID: 12123857 12/08/2012 03:15 PM Report Abusive Post Report Copyright Violation | |
| Luisport User ID: 29336800 12/08/2012 03:17 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH John Seach@johnseach Quoting: Luisport 18h #Maroa volcano, New Zealand. Magnitude 6.3 earthquake hit 16 km north of Orakei Korako geothermal area on 8 Dec 2012. [link to mobile.twitter.com (secure)] hiya luis neat to hear from you, too thanks for this, i am looking forward to reading what john seach has to say volcanic developments are happening here very quickly now thank you also for your constant support of this important thread, brother xxx My friend i want just to say i'm praying for you and all New Zealand people! |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:19 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH hiya ozark and its neat to see you here too sorry i have been a bit on and off here, but life gets busy for me sometimes and i have to do my own stuff boy things are amping up here with our volcanoes... i am as safe as one can be, given my proximity to the volcanoes, and i know that we are looked after from above much love to you, sister xxx |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:26 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH John Seach@johnseach Quoting: Luisport 18h #Maroa volcano, New Zealand. Magnitude 6.3 earthquake hit 16 km north of Orakei Korako geothermal area on 8 Dec 2012. [link to mobile.twitter.com (secure)] hiya luis neat to hear from you, too thanks for this, i am looking forward to reading what john seach has to say volcanic developments are happening here very quickly now thank you also for your constant support of this important thread, brother xxx My friend i want just to say i'm praying for you and all New Zealand people! thank you luis, your caring and prayers mean a lot to us here, you are a dear person xxx and guess what, i need YOU here on this thread too!!! |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:29 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH The way i see it is if ppl are having doom dreams it means they are ready when shtf Quoting: nibiflex ![]() hiya nibiflex you have a good point there... those of us who are mentally prepared for whatever is now close at hand, will cope with it with strength, and therefore be able to help others who are panicking when the time comes |
| Luisport User ID: 29336800 12/08/2012 03:29 PM ![]() Report Abusive Post Report Copyright Violation | |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:35 PM ![]() Report Abusive Post Report Copyright Violation | |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:38 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH luis i am concerned about rarotonga, that their volcano is awakening too: hmmm... Quoting: Tauranga another event of some kind at kermadec [link to earthquake.usgs.gov] and watching rarotonga closely too [link to www.geonet.org.nz] |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:39 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH 4.7 01:26:31 Sun 09 Dec 2012 Depth: 15.8 km 3.2 09:27:35 Sat 08 Dec 2012 Depth: 203.5 km Quoting: Tauranga 3.1 08:56:48 Sat 08 Dec 2012 Depth: 518.8 km 3.3 07:48:16 Sat 08 Dec 2012 Depth: 200.2 km 3.3 07:42:04 Sat 08 Dec 2012 Depth: 196.0 km 3.4 07:39:36 Sat 08 Dec 2012 Depth: 202.6 km 3.3 07:31:53 Sat 08 Dec 2012 Depth: 238.9 km 3.3 07:24:01 Sat 08 Dec 2012 Depth: 156.2 km 5.8 07:19:06 Sat 08 Dec 2012 Depth: 174.6 km 3.2 03:25:46 Sat 08 Dec 2012 Depth: 18.7 km 4.1 21:29:41 Fri 07 Dec 2012 Depth: 408.1 km 3.6 21:02:14 Fri 07 Dec 2012 Depth: 244.1 km 3.6 17:36:01 Fri 07 Dec 2012 Depth: 10.0 km 3.7 07:31:54 Fri 07 Dec 2012 Depth: 27.0 km 3.0 04:08:39 Thu 06 Dec 2012 Depth: 144.5 km 3.4 17:26:13 Wed 05 Dec 2012 Depth: 234.0 km 4.5 12:12:18 Wed 05 Dec 2012 Depth: 137.8 km 3.7 06:08:57 Wed 05 Dec 2012 Depth: 141.6 km 3.2 20:28:54 Tue 04 Dec 2012 Depth: 6.9 km 3.2 16:21:01 Tue 04 Dec 2012 Depth: 21.6 km 4.1 16:57:18 Mon 03 Dec 2012 Depth: 278.3 km 3.2 11:32:03 Mon 03 Dec 2012 Depth: 5.0 km map to see locations of these quakes [link to quakemap.co.nz] |
| nibiflex User ID: 12123857 12/08/2012 03:42 PM Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH The way i see it is if ppl are having doom dreams it means they are ready when shtf Quoting: nibiflex ![]() hiya nibiflex you have a good point there... those of us who are mentally prepared for whatever is now close at hand, will cope with it with strength, and therefore be able to help others who are panicking when the time comes Hehehe i even got a plane on standby so wether its now or 30 yrs from now im ready for anything , ![]() ![]() |
| Luisport User ID: 29336800 12/08/2012 03:49 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH luis Quoting: Tauranga i am concerned about rarotonga, that their volcano is awakening too: hmmm... Quoting: Tauranga another event of some kind at kermadec [link to earthquake.usgs.gov] and watching rarotonga closely too [link to www.geonet.org.nz] The island of Rarotonga in the southern Pacific is the emergent summit of a Pliocene - Pleistocene volcanic complex built by effusive and pyroclastic eruptions of mainly mafic magma. Petrographically the basaltic rock types are ankaramite and basalt, which range in chemical composition from alkali basalt to nephelinite. Phenocryst assemblages suggest two igneous series, one with a relatively simple equilibrium assemblage of olivine, titanian augite and magnetite, and one with olivine, diopside-augite and titanian augite in which the phenocrysts show disequilibrium textures. These variations reflect fractionation, assimilation, and recharge processes in the upper part of the magmatic system that produced the volcano. The final stages of volcanism at Rarotonga were pyroclastic eruptions of phonolites and effusive eruptions of foidal phonolites, both representing late stage fractionation products. Detailed mapping, together with geochemical work, has prompted a revision of the stratigraphy of the island based on the concept of a single cycle of magmatic activity rather than the Hawaiian style multi-phase evolution favoured by earlier workers. [link to researchspace.auckland.ac.nz (secure)] |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:52 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH The way i see it is if ppl are having doom dreams it means they are ready when shtf Quoting: nibiflex ![]() hiya nibiflex you have a good point there... those of us who are mentally prepared for whatever is now close at hand, will cope with it with strength, and therefore be able to help others who are panicking when the time comes Hehehe i even got a plane on standby so wether its now or 30 yrs from now im ready for anything , ![]() ![]() lols wow man, you really are prepared!! good on you |
| Tauranga (OP) User ID: 3794107 12/08/2012 03:57 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH luis Quoting: Tauranga i am concerned about rarotonga, that their volcano is awakening too: hmmm... Quoting: Tauranga another event of some kind at kermadec [link to earthquake.usgs.gov] and watching rarotonga closely too [link to www.geonet.org.nz] The island of Rarotonga in the southern Pacific is the emergent summit of a Pliocene - Pleistocene volcanic complex built by effusive and pyroclastic eruptions of mainly mafic magma. Petrographically the basaltic rock types are ankaramite and basalt, which range in chemical composition from alkali basalt to nephelinite. Phenocryst assemblages suggest two igneous series, one with a relatively simple equilibrium assemblage of olivine, titanian augite and magnetite, and one with olivine, diopside-augite and titanian augite in which the phenocrysts show disequilibrium textures. These variations reflect fractionation, assimilation, and recharge processes in the upper part of the magmatic system that produced the volcano. The final stages of volcanism at Rarotonga were pyroclastic eruptions of phonolites and effusive eruptions of foidal phonolites, both representing late stage fractionation products. Detailed mapping, together with geochemical work, has prompted a revision of the stratigraphy of the island based on the concept of a single cycle of magmatic activity rather than the Hawaiian style multi-phase evolution favoured by earlier workers. [link to researchspace.auckland.ac.nz (secure)] what do you think we are seeing on the rarotonga graphs? and what do you think about what looks like regular volcanic activity at kermadec (btw it looks steamy there again today, which it often does, this steaminess showing on the webcam seems to correlate to the volcanic episodes that show on the graphs very frequently) |
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| Tauranga (OP) User ID: 3794107 12/08/2012 04:02 PM ![]() Report Abusive Post Report Copyright Violation | Re: WHAT IS HAPPENING AT WHITE ISLAND VOLCANO??? New Zealand/Kermadec & South Pacific QUAKE/VOLCANO WATCH Strong and deep earthquake M 6.3 struck North Island of New Zealand [link to thewatchers.adorraeli.com] A strong and deep 6.3 magnitude earthquake struck North Island of New Zealand on December 7, 2012 at 18:19 UTC. Epicenter was located 18 km (11 miles) SE of Tokoroa, New Zealand, 27 km (16 miles) SW of Rotorua, New Zealand and 39 km (24 miles) N of Taupo, New Zealand at coordinates 38.334°S, 176.044°E. Recorded depth by USGS was 167.2 km (103.9 miles). Both USGS and EMSC reported magnitude 6.3. EMSC reported depth of 146 km. Geonet / GNS Science reports a Magnitude of 5.8 at a depth of 175 km. GDACS reported that this earthquake can have a low humanitarian impact based on the Magnitude and the affected population and their vulnerability. 550 000 people are living within 100 km. Magnitude 6.3 Date-Time Friday, December 07, 2012 at 18:19:08 UTC Saturday, December 08, 2012 at 07:19:08 AM at epicenter Location 38.334°S, 176.044°E Depth 167.2 km (103.9 miles) Region NORTH ISLAND OF NEW ZEALAND Distances 18 km (11 miles) SE of Tokoroa, New Zealand 27 km (16 miles) SW of Rotorua, New Zealand 39 km (24 miles) N of Taupo, New Zealand 72 km (44 miles) S of Tauranga, New Zealand Location Uncertainty horizontal +/- 13.2 km (8.2 miles); depth +/- 8 km (5.0 miles) Parameters NST=173, Nph=181, Dmin=93.5 km, Rmss=1.71 sec, Gp= 47°, M-type=teleseismic moment magnitude (Mw), Version=8 Source Magnitude: USGS NEIC (WDCS-D) Location: USGS NEIC (WDCS-D) Event ID usc000e5z5 Tectonic summary by USGS Seismotectonics of the Eastern Margin of the Australia Plate The eastern margin of the Australia plate is one of the most seismically active areas of the world due to high rates of convergence between the Australia and Pacific plates. In the region of New Zealand, the 3000 km long Australia-Pacific plate boundary extends from south of Macquarie Island to the southern Kermadec Island chain. It includes an oceanic transform (the Macquarie Ridge), two oppositely verging subduction zones (Puysegur and Hikurangi), and a transpressive continental transform, the Alpine Fault through South Island, New Zealand. Since 1900 there have been 15 M7.5+ earthquakes recorded near New Zealand. Nine of these, and the four largest, occurred along or near the Macquarie Ridge, including the 1989 M8.2 event on the ridge itself, and the 2004 M8.1 event 200 km to the west of the plate boundary, reflecting intraplate deformation. The largest recorded earthquake in New Zealand itself was the 1931 M7.8 Hawke’s Bay earthquake, which killed 256 people. The last M7.5+ earthquake along the Alpine Fault was 170 years ago; studies of the faults’ strain accumulation suggest that similar events are likely to occur again. North of New Zealand, the Australia-Pacific boundary stretches east of Tonga and Fiji to 250 km south of Samoa. For 2,200 km the trench is approximately linear, and includes two segments where old (>120 Myr) Pacific oceanic lithosphere rapidly subducts westward (Kermadec and Tonga). At the northern end of the Tonga trench, the boundary curves sharply westward and changes along a 700 km-long segment from trench-normal subduction, to oblique subduction, to a left lateral transform-like structure. More information on regional seismicity and tectonics Featured image: EMSC + Google Earth [link to thewatchers.adorraeli.com] map:December 7, 2012 – M 6.3 North Island of New Zealand [link to thewatchers.adorraeli.com] |