A large earthquake has just hit Christchurch. The quake hit at 1.58pm and was followed by a second sharp jolt. A visitor to the city said Westfield Mall was being evacuated. Terrified shoppers stumbled and fell as they fled the mall and items tumbled off shelves. Advertisement: Story continues below Phone lines are down. The quake was also felt in Dunedin. Last year Christchurch was rocked by a series of earthquakes on Boxing Day, with more than two dozen recorded. A 4.9-magnitude quake at 10.30am was the seventeenth most powerful since the damaging 7.1 quake on September 4. The earthquake that caused the most damage hit on February 22, killing 182 people. More to come Read more: www.smh.com.au...
Originally posted by elrey72011
4.9 is not large. that is tiny compared to the actual big ones.
A 4.9-magnitude quake at 10.30am was the seventeenth
Originally posted by greenfruit
Reference Number: 3631359
NZDT: Fri, Dec 23 2011 1:58 pm
Depth: 8 km
Details: 20 km north-east of Lyttelton
Just shaking now as I type... not good people.
23.12.2011 02:20:24 5.8 Pacific Ocean New Zealand Woodville County New Brighton VulkĂĄn 0 There are airport(s) nearby the epicenter. VulkĂĄn 0 GEONET
Originally posted by greenfruit
Reports of power lose in parts of the City
So far only one injury reported in a mall (Police)
Reports of Sulphur smell across the city??????
Can smell here in Northwood (North Christchurch)edit on 22/12/2011 by greenfruit because: (no reason given)
Volcano eruptions are important sources of gases, such as sulphur dioxide (SO2), and volcanic ash (aerosols) in the atmosphere. These emissions may have an impact on air traffic: near-real time information on the emissions of volcanic ash and sulphur dioxide will enable better planning of air line routes. If the SO2 concentrations in a given region exceed a limit, a warning is issued of a possible volcano eruption. www.temis.nl...
New boiling hot springs near Christchurch? New volcano activity?
– March 10, 2011Posted in: Earth changes, Seismic activities, Volcanoes
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 zone cross section (graphics by Paul Fazey)
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.