Powerful aftershock shakes the Christchurch area again

Lyttelton port in 2004.

The port of Lyttelton - Image via Wikipedia

Earthquake Report comment :
A powerful aftershock occurred at 11:32 am of Tuesday October 19.
The epicenter was located only 1 km from Lansdowne,  5 km south of Halswell and 10 km west of Lyttelton
The hypocenter was at a very shallow depth of 9 km.
This aftershock proves once more that the greater Christchurch area is till at risk for major aftershocks. Until now only 5+ magnitudes have been reached, but Magnitudes of +6 are certainly still possible. Such aftershocks can be very damaging at shallow depths.
Local media report that products tumbled from shelves and that many buildings have been evacuated after the shock.
Other reports mention bricks falling in the city.
The Lyttelton tunnel was closed after the quake but had since reopened. The port was operating as usual.
The quake scared people a lot, but fortunately no major damage or injuries were reported.
A specific phenomena of this aftershock was once again “liquefaction’ in some areas.
Read the full report of this aftershock in the local edition of  “the press” Christchurch

Most important Earthquake Data:
Magnitude : M 5.0
Tuesday, October 19 2010 at 11:32 am (local time)
Depth (Hypocenter) : 9 km
Geo-location(s) :
10 km west of Lyttelton
10 km south-west of Christchurch

Links to important maps
GNS Science Did You Feel It Map
Google satellite map of the area showing the kind of terrain the earthquake took place
GNS Science  Shaking map
USGS historic earthquakes map
Live Seismograph

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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Earthquakes list October 15, 2010

M 4.7      2010/10/15 21:14     Depth 179.0 km     EASTERN HONSHU, JAPAN
October 16, 2010 at 06:14:49 AM at epicenter
60 km (40 miles) S of Aomori, Honshu, Japan. Too deep to create problems

M 5.1      2010/10/15 17:54     Depth 10.0 km     NORTHERN MID-ATLANTIC RIDGE
3:54:02 PM at epicenter
In the middle of the Atlantic Oceon where the 2 tectonic plates are spreading

M 4.6      2010/10/15 22:31    Depth 7 km     20 km south-west of Christchurch, New Zealand
10:31 PM at epicenter
This is an example of the many aftershocks which are still striking the Christchurch area. On October 14 we had a M 4.1 aftershock and and on October 13 even a M 5.0 at 20 km of Christchurch. None of these events have been reported by USGS or EMSC. We do not understand the system behind reporting or not reporting.

M 5.1      2010/10/15 12:43    Depth 48.9 km     OFF THE WEST COAST OF NORTHERN SUMATRA
7:43 PM at epicenter
Seaquake at a harmless depth between the island of Simeulue and the mainland of Sumatra. 207 km from Banda Aceh

M 4.4      2010/10/15 10:20    Depth 25.5 km     ARKANSAS
5:20:28 AM at epicenter.
Shallow depth at 25.5 km. Harmless earthquake at this magnitude. Epicenter near Bald Knob and 25 km from Conway.

M 5.1      2010/10/15 09:56    Depth 73.7 km      NEW IRELAND REGION, PAPUA NEW GUINEA
7:56:52 PM at epicenter
Average depth without any potential danger. At least 50 km from the closest islands.

M 4.8      2010/10/15 07:39    Depth 121.1 km     TARAPACA, CHILE
4:39 AM at epicenter
Deep hypocenter (normal for this area) almost under the Salar de Surire National Monument. Close to the border with Bolivia.

M 4.1 2010-10-15   05:21      Depth 30 km    SOUTHERN ITALY
local time 07:21
Moderately shallow and weak earthquake only 8 km from Catanzaro, a town with 94,879 inhabitants. Closest village to the epicenter : Pentone (pop. 2,224)

M 4.8      2010/10/15 02:49    Depth 588.2 km     MORO GULF, MINDANAO, PHILIPPINES
10:49:07 AM at epicenter
Aftershock of a much more powerful earthquake which occurred at the same depth a couple of months ago.

seismograph - recordingUseful 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.

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