Waimak Earthquake bubbles. Quoting: Tauranga
Uploaded by znomods on Dec 24, 2011
Dave from Jungle Patrol Cafe out fishing with pomy mate .. nek minit earthquake hits and river starts to bubble .. crazy! Christchurch, NZ, Friday 23rd December 2011
Wow..that is interesting.
did you see this article last year?
[link to thewatchers.adorraeli.com
lots of great maps and images
New boiling hot springs near Christchurch? New volcano activity?
BY EYE – MARCH 10, 2011
IceAgeNow posted a letter from concerned reader writting about new hot spring formed in the area of Cass Bay near Christchurch. There were various reports recently about new hot springs boiling in the peninsula. People also reporting the stench of sulphur emanating from the harbour area. Navy and army are apparently combing the area with geological survey tools. Residents are scarred that Ruaumoko volcano is coming to life. 36 million liters of water mysteriously disappeared from a reservoir in Huntsbury New Zealand following the February 22nd 6.3 earthquake in Christchurch. In past 7 days there were 88 earthquakes reported in Christchurch.
Subduction zones always have associated volcanoes inland from the point of contact and on the east coast of the South Island are several, each one occupied by a major town or city: Christchurch, Timaru, Oamaru and Dunedin. Subduction zone volcanoes are never extinct, only dormant. New Zealand in general and the South Island especially sits astride a subduction zone where the sea floor on the west side is pushing under the sea floor on the east side causing uplift.
Volcanoes of very fine silt have sprung up around the Christchurch area since the initial quake, some as high as 2 metres have been likened to termite hills. These cones seem be linked to the smell of sulphur in some places.
Banks Peninsula forms the most prominent volcanic feature of the South Island. Geologically, the peninsula comprises the eroded remnants of two large shield volcanoes (Lyttelton fand Akaroa). The peninsula formed as offshore islands, with the volcanoes reaching to about 1,500 m above sea level. Two dominant craters formed Lyttelton and Akaroa Harbours.
New Zealand lies on the rim of the Pacific tectonic plate which is the same fracture in the earth’s crust that passes through Japan and the west coast of the United States. This fracture passes through both the North and South Islands and causes high mountains in both islands, but the geological process are different. In the South Island, the Pacific and Indo-Australian plates are smashing in to each other. This collision has created the spectacular Southern Alps mountain range. In the North Island, one techtonic plate is sliding under the other, and the result of this geological process is volcanic activity. The vast majority of thermal activity in the North Island is centred in and around Rotorua and the Central Plateau area, which makes up the centre of the island.
New Zealand has a lot of active volcanoes and a high frequency of eruptions. There are three major types of volcano in New Zealand. Volcanic activity in New Zealand occurs in six areas, five in the North Island and one offshore in the Kermadec Islands. Volcanoes in New Zealand are grouped into areas of more intensive and long-lived activity, whose position (and the composition of the lavas erupted) can be related to the large-scale movement of the tectonic plates in the New Zealand region.
Most New Zealand volcanism in the last 1.6 million years has occurred in the Taupo Volcanic Zone (TVZ). The zone extends from White Island to Ruapehu. The Taupo Volcanic Zone is extremely active on a world scale: it includes three frequently active cone volcanoes (Ruapehu, Tongariro/Ngauruhoe, White Island), and two of the most productive calderas in the world (Okataina and Taupo).
The biggest and most dangerous volcano in New Zealand and the world, is actually Lake Taupo which is New Zealand’s largest lake, and is located in the centre of the North Island. This volcano last erupted in the year 186 AD, and erupts approximately once every 2000 years. This eruption was over 50 times the magnitude of the Mt St Helen’s eruption. Mt St Helens moved 3 cubic kilometers of earth, and Krakatoa (the biggest in recent times) in Indonesia moved 8 cubic kilometers, compared to 110 cubic kilometers for Taupo.
This eruption is regarded as the biggest in the last 5000 years. The event was recorded by the Chinese and the Romans. The Chinese actually heard the bang and made a record of the brilliant sunsets that lasted approximately 6 months. About 26,500 years ago, Lake Taupo had the worlds biggest and most destructive eruption in the last 70,000 years. That event dwarfed the 186 AD eruption.
The Rotorua area contains many thermal reserves that all contain good examples of boiling mud pools, hot springs, geysers, thermal rivers, boiling lakes, steam vents (fumeroles) and volcanic terraces.
Christchurch Quakes: Strong smell of sulphur in eastern suburbs (WeatherWatch.co.nz)
Sulphur Smell After Lyttelton Shake, Sulphur Dust On Cars (EmigrateToNewZealand)
Smell Reported Across Eastern Christchurch Suburbs (Voxy)
New boiling hot springs near Christchurch? (IceAgeNow)
Engineer concurs – Christchurch could be headed for volcanic eruption (IceAgeNow)
New Boiling Springs appear In Christchurch Harbor (DiscloseTV)
Christchurch Quake Map
Geothermal Energy and Hydrothermal Activity Fumaroles, Hot Springs, Geysers (USGS)