Christchurch aftershocks : Know what to do before, during and after

Below we publish The New Zealand Government preparedness measures for earthquakes.
In the event of a major aftershock, people should read these measures again and again. They can save your life.
These preparedness measures also apply for the entire world. There is no difference in between an earthquake in New Zealand or Japanese.

You can take some simple steps to reduce the danger to yourself,  your family, and property when earthquakes occur.

1. Before an earthquake

• Identify safe places very close to you at home, school or workplace, such as under a sturdy table, or next to an interior wall.
• Develop a Household Emergency Plan and have emergency survival items so that you can cope on your own for at least three days
• Protect property – secure objects and your homes and keep insurance up to date

2. During an earthquake

• Move no more than a few steps to a safe place, drop, cover, and hold on.
• Do not attempt to run outside
• If outside, move no more than a few steps to a safe place, drop, cover, and hold
• If in a lift, stop at the nearest floor and get out
• If you are driving, pull over to the side of the road. Stay in the vehicle until the shaking stops

Prepare for an earthquake

3. After an earthquake

• Expect aftershocks and help those around you if you can
• Report injuries or fires to the emergency services (dial 111).
• Put out small fires. Evacuate the building if the fires cannot be controlled.
• Listen to the radio for advice and information.
• If your property is damaged, take notes or photos for the loss adjustor.
• Do not go sightseeing and stay out of damaged buildings

Christchurch, New Zealand earthquake : 15 aftershocks (M 3.0 or greater) since this morning 8 AM

Christchurch Earthquake  -  St Albans

Image by annzstream via Flickr

A lot more aftershocks since this morning.

Although scary for the local people, the Magnitudes were very moderate.
Since 8 AM this morning (local time) at least 15 aftershocks of a magnitude greater than 3.0 have been registered.
5 of the shocks had magnitudes in between 4.0 and 4.5

Check our LIVE AFTERSHOCKS PAGE for more information.

Other pages we published on this earthquake (most recent are ranked above)

Christchurch massive earthquake : more news from the quake area …

New Zealand earthquake : the best video’s of the earthquake

New Zealand Christchurch hit by a Magnitude 7.0 earthquake (part 2)

Helicopter footage of the Christchurch earthquake damage

Powerful aftershock rattles Christchurch and Canterbury, New Zealand

Understanding the massive 7.0 Christchurch Earthquake

New Zealand Christchurch hit by a Magnitude 7.0 earthquake

Understanding the massive 7.0 Christchurch Earthquake

The September 3, 2010 South Island, New Zealand earthquake occurred as a result of strike-slip faulting within the crust of the Pacific plate, near the eastern foothills of the Southern Alps at the western edge of the Canterbury Plains.
The earthquake struck approximately 50 km to the west-northwest of Christchurch, the largest population center in the region, and about 80-90 km to the south and east of the current expression of the Australia:Pacific plate boundary through the island (the Alpine and Hope Faults).

The earthquake, though removed from the plate boundary itself, likely reflects right-lateral motion on one of a number of regional faults related to the overall relative motion of these plates and may be related to the overall southern propagation of the Marlborough fault system in recent geologic time.

Today’s earthquake occurred approximately 50 km to the southeast of a M7.1, surface-rupturing event in Authur’s Pass, on March 9th, 1929, which caused 17 fatalities. More recently, two earthquakes of M6.7 and M5.9 occurred in June 1994 approximately 40 km to the northwest of today’s event, but did not cause any known fatalities or significant damage.

Earthquakes list September 3, 2010

M 5.0      2010/09/03 22:12   Depth 93.8 km     SAN JUAN, ARGENTINA
Deep quake quite close to San Martin and San Juan, but because of the depth not damaging

M 5.3      2010/09/03 21:15   Depth 66.4 km     HOKKAIDO, JAPAN REGION
Moderate earthquake near the coast of Kushiro

M 4.8      2010/09/03 20:00   Depth 61.9 km     MARIANA ISLANDS REGION
Aftershock – same area as the preceding weeks

M 4.9      2010/09/03 19:57   Depth 45.6 km     MARIANA ISLANDS REGION
Aftershock – same area as the preceding weeks

M 5.6      2010/09/03 17:06   Depth 61.2 km     SOUTHERN SUMATRA, INDONESIA
Quit deep and probably not damaging. Detailed report

M 5.7      2010/09/03 16:53   Depth 17.4 km     SOUTH ISLAND OF NEW ZEALAND
Powerful aftershock

M 7.0      2010/09/03 16:35   Depth 12.0 km     SOUTH ISLAND OF NEW ZEALAND
Massive earthquake, please read all in our extensive reporting

6.3      2010/09/03 11:16   Depth 50.8 km     ANDREANOF ISLANDS, ALEUTIAN IS., ALASKA
See extensive report by clicking on this link

M 4.9      2010/09/03 10:58   Depth 286.3 km FLORES SEA
Very deep in the earth’s mantle. No problem.

M 5.1      2010/09/03 04:19   Depth 10.0 km     MID-INDIAN RIDGE
In the middle of the Indian Ocean

M 4.3      2010/09/03 04:13   Depth 458.2 km     SEA OF OKHOTSK
Very, very deep moderate earthquake near Kamchatka

M 5.0      2010/09/03 04:00   Depth 35.0 km     VANUATU
Serious aftershock almost on the beaches of Efate and a short distance from Port-Vila

M 4.5      2010/09/03 02:32   Depth 35.0 km     SOUTH OF ALASKA
Moderate earthquake right on the subduction ridge of the volcano arc

M 5.0      2010/09/03 02:29   Depth 47.7 km     NEW BRITAIN REGION, PAPUA NEW GUINEA
Moderate aftershock in the wilderness of New Britain island

Useful information to read this daily earthquake list
This earthquake list covers minor and major earthquakes in the world.
If a more detailed page is present, the earthquake line will be linked to the detailed page.
For your comfort, we will provide in most cases Google Satellite Map links to give you an idea where the earthquake struck, which terrain it happened and if villages or cities are located in the immediate vicinity. The reference for the time zone is UTC (Coordinated Universal Time, also called GMT)
The page is regularly updated to add new earthquakes.
green color = NOT dangerous for damage or injuries
orange color = MODERATE risk for damage or injuries
red color = CONSIDERABLE risk for damage or injuries

QuakeSOS has been developed to help actively people who are caught in an earthquake + delivers "Earthquake Report" information on your iPhoneQuakeSOS is a FREE iPhone application developed by Armand Vervaeck, the creator and main contributor to Earthquake Report. The Application simplifies immediate group communication to friends and family members (with your exact GPS location) and is constantly feeding the users with “Earthquake Report” news. Together with your own family and friends, QuakeSOS will be your closest earthquake friend.

Christchurch massive earthquake : damage far greater than initially admitted

Please click here for our extensive report.

We will maintain all current data on this location + continuous updates whenever we get the information.

Power in Christchurch is OUT. Damage to houses and roads reported

Please click here for our extensive report.

We will maintain all current data on this location

New Zealand Christchurch hit by a Magnitude 7.0 earthquake

Christchurch early damage - click on this picture for a local report and to look at the full image

Earthquake Report comment :

Latest updates can be found below

Although FELT reports are coming in strong to very strong shaking in and near the city. Look at the detailed felt reports arriving at the USGS

GDACS issued a ORANGE alert for this dangerous earthquake (if data is confirmed).
The depth of 34 km is shallow enough to cause problems.
The earthquake happened in the middle of the New Zealand night.
If the epicenter data are correct, the epicenter is located in the town of Lyttleton, just outside Christchurch
USGS has just improved his readings with an epicenter 30 km from Christchurch, but with a shallow depth op only 16 km.
GDACS calculations are giving a local tsunami in the immediate vicinity of the epicenter of 30 cm.
USGS gas decreased the Magnitude to M 7.2, better but still violent.
Christchurch is one the worst places an earthquake can strike.
Power in the city is OUT, Damage to houses and roads has been reported. Power is out until Dunedin in the far south of the South Island
As it is in the middle of the night and as the power is out in big parts of the South Island, Only small portions of information come out of the epicenter area.
First heavy aftershock of Magnitude 5.7 rattles the same area

Update 18:00 UTC : Epicenter has been relocated to Springbank and Rangiora, both farming communities. Local newspapers have no reports so far on what is going on.

First pictures of the New Zealand earthquake in Christchurch - click on the photo for the link to the

Update 18:09 UTC : Reuters Alertnet reports : no casualties but widespread reports of damage, authorities said. Read the full report. comment : it is far to early to have adequate readings on the damage and injuries as it is night and as it will take a couple of hours before all data can be broyght together.

Update 18:18 UTC : Susan Mary Ross reports from Christchurch (via our facebook site)That’s the biggest I can recall in 50 years. We lost many special plates and crocery that rocked of the shelves and a Don Binney print fell from the wall smashing its glass. Furniture and boxes fell the place looks like a bomb site. Puppy is cowering under my desk and won’t come out. Luck…y it wasn’t much worse and just seems to be damage to property. Hope all is well it everyone else. Blessings!

Update 18:20 UTC : Power is completely out in NOrthern Christchurch (the epicenter of the quake is 30 km north of Christchurch).  Almost all houses have broken glass, china, etc.  Civil Defense department will soon decide whether to call a National Crisis.
The present earthquake is one of the biggest earthquakes  in recorded history on the South Island.
The quake has been felt as far as Wellington.

Update 18:47 UTC : Magnitude has been further downgraded to M 7.0 (a big difference with 7.4).
New depth is 12 km (source USGS).
New epicenter is just north of Waddington and Springfield, 2 small farming communities

Update 18:56 UTC : we have renewed all the links of the important maps as after recalculation, the coordinates, epicenter etc. have been changed.
The most importnat now is to find out the damaga en eventual injuries in Waddington, Springfield, Annat and Sheffield.

Update 19:03 UTC : The damage will be far greater than initially expected. This is a facebook report of our special site just in  from Melony Davison :  Not much of a ride for me 😦 it distroyed half my house, the retaining wall colapsed onto the nieghbours hosue. But thankgod for insurance and we are all safe!)
Based on this report and other fractioned reports found on many places on the internet : the damage is far greater than initially admitted. Another 2 or 3 hours will be needed to have a better view on the impact.

Update 19:03 UTC : Limited damage reported in South Canterbury.

Update 20:13 UTC : First daylight pictures of the damage
Testimony of Jasmine Erridge : the ceiling caved in on my son while he was asleep in his bed… thank god he’s ok, im ok, familys ok. thank goodness have just moved and hadnt had a chance to hang heavy stuff on the wall yet!!
Christchurch airport has been closed until further notice. People are asked NOT to use their cell phones to avaoid overloading the network.  Railway system is being checked for damage and trains are temporarily halted in the area.
So far no casualties, only some injured people.

Update 20:16 UTC : A lot of cars are being damaged by falling bricks. So far only reports of Christchurch. Still no word on the epicenter villages.
Additional Facebook testimonies :  Tysin Davison THE BRICK WALL ON MY SIDE OF HOUSE FELL ONTO THE NEIGHBOURS . O.O   Amanda Haynes Not sure about Cathedral, but Godley House and evidentally the Art Centre have major damage. Cathedral had work done on it recently for repairs, so maybe it is okay

Update 20:58 UTC : So far hospitals only have received a couple of seriously injured people and a number of minor injuries. Civil Defence is organizing Emergency Management Centers.  Christchurch’s Avonside Drive has been seriously damaged. Older buildings in the Sydenham suburb have collapsed.
Earthquake report comment : all the news we get at the moment comes from Christchurch, about 55 km from the epicenter. Until now no report yet on the epicenter villages.
Darfield resident Meg Morten said the earthquake was preceded by a ”huge noise” that jolted her from her sleep. was one of the first worldwide to report in-depth about this massive earthquake. Follow us on twitter or in Facebook.

Update 20:58 UTC : Power is still down in rural Canterbury. Most of the injured people have glass cuts (from broken windows) and broken bones. Aftershocks are still going on and will continue for days and even weeks. People in Christchurch and surrounding areas will have to get used on these aftershocks, just as the Chile people had to after the M 8.8 earthquake from February 27.

Update 21:20 UTC : Seaside suburb on standby to evacuate as flooding may be possible.  As most of the Cell Phone towers are running on batteries since the earthquake struck, they will do down within a couple of hours. Press reporters say there has been widespread damage to buildings on the corner of Edgeware Road and Barbados Steet, with rubble lying on the road and properties badly damaged.

Update 21:57 UTC : The port of Lyttelton has major damage . Cost will run into the millions. State of emergency declared by Bob Parker in last few minutes. Some residents asked to prepare for evacuation due to flooding and sewerage problems. State of Civil Emergency will be declared by John Carter very soon. SAR (Search and Rescue teams) are still searching for people in collapsed houses. So far no casualties, only injured.

Update 22:01 UTC : John Carter : Quake was a significant disaster. So far, 2 people have been reported SERIOUSLY INJURED in the earthquake.  An estimated 5% of all Christchurch buildings have been damaged by the M 7.0 earthquake. Damage in rural areas still have to come in. Reports of looting in the city ! Central Christchurch closed by the police to avoid looting. Driving not possible by the rubble on the streets

Update 22:31 UTC : No perceivable damage see to Christchurch’s famous Roman Basilica Cathedral. State of Emergency officially declared.  Two New Zealand Red Cross emergency management teams with 21 members are in action in Canterbury

Update 23:52 UTC : Urban Search and Rescue teams are being flown from the North Island to help with the assessment process. One person in intensive care after being crushed by a crumbling chimney. Earlier reports of looting were exaggerated. City center closed to people not living in that area. Major damage reported in the historic town of Lyttelton.

Seismogram from the Christchurch September 3, 2010 earthquake (station : South Karori, New Zealand)

NOAA Tsunami bulletin :





Most important Earthquake Data:
Saturday, September 04, 2010 at 04:35:47 AM at epicenter
Depth (Hypocenter) : 12 km
Geo-location(s) :
55 km (4 miles) SSE (154°) from Christchurch, New Zealand

Links to important maps
USGS Did You Feel It Map
Google satellite map of the area showing the kind of terrain the earthquake took place
USGS Shaking map
USGS historic earthquakes map
USGS Pager map (impact on population)
GDACS ORANGE Earthquake Alert (Global Disaster Alert and Coordination System)

* GDACS (Global Disaster Alert and Coordination System) provides near real-time alerts about natural disasters around the world.  GDACS is a Joint Initiative of the United Nations and the European Commission

QuakeSOS has been developed to help actively people who are caught in an earthquake + delivers "Earthquake Report" information on your iPhoneQuakeSOS is a FREE  iPhone application developed by Armand Vervaeck, the creator and main contributor to Earthquake Report.  The Application simplifies immediate group communication to friends and family members (with your exact GPS location) and is constantly feeding the users with “Earthquake Report” news. Together with your own family and friends, QuakeSOS will be your closest earthquake friend.

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