New strong aftershock in the Cook Strait, New Zealand

Update July 29 07:38 UTC : Sources in New Zealand are mentioning 30 Wellington houses/buildings with slight damage after this aftershock.


Update 13:32 UTC : The initial reported Magnitude has been increased to M5.4 (from M5.0) and the Depth decreased from 17 km to 12 km., which makes it at the end a lot more stronger.

Update 13:24 UTC : We think that this aftershock will not generate any damage because of a) epicenter in the sea and b) too far away from populated places.

Update 13:21 UTC : The epicenter of this earthquake is still in the same area than the M6.4 mainshock. The distance to populated areas is relatively far away. We expect however a new tirade of aftershocks from M3 to M4, this based on the pattern of the aftershocks after the very strong mainshock and the many powerful aftershocks.

People seem to be used on the many aftershocks and this latest M5 hasn't attracted a lot of people to their computer screen or smartphone. This is a typical phenomenon for people continuously shaken by aftershocks.
The Magnitude was however the strongest in 2 days. Location of the epicenter : near the coast of Seddon, Blenheim of the South Island.

Main article on the Cook Strait earthquakes

Screen Shot 2013-07-28 at 15.15.05

Image courtesy Geonet and GNS Science, New Zealand

Most important Earthquake Data:

Magnitude : 5.4

Local Time (conversion only below land) : 2013-07-29 01:07:14

GMT/UTC Time : 2013-07-28 13:07:14

Depth (Hypocenter)  : 12 km

Depth and Magnitude updates in the list below.

Share your earthquake experience (I Have Felt It) with our readers.
Click on the "I Felt It" button behind the corresponding earthquake. Your earthquake experience is not only important for science, but also for people in the area as well as our global readership.

Refresh this list
SRC Location UTC Date/time M D INFO
GEONET Seddon Jul 28 23:42 2.6 5 MAP
GEONET Seddon Jul 28 23:10 2.2 6 MAP
GEONET Seddon Jul 28 22:48 2.3 5 MAP
GEONET Seddon Jul 28 22:44 2.1 5 MAP
GEONET Seddon Jul 28 22:24 2.1 5 MAP
GEONET Seddon Jul 28 22:22 2.0 5 MAP
GEONET Seddon Jul 28 22:18 1.7 7 MAP
GEONET Seddon Jul 28 22:14 1.8 7 MAP
GEONET Seddon Jul 28 21:59 2.0 5 MAP
GEONET Seddon Jul 28 21:48 2.0 5 MAP
GEONET Seddon Jul 28 21:17 2.2 12 MAP
GEONET Seddon Jul 28 21:00 2.0 11 MAP
GEONET Seddon Jul 28 20:37 2.3 5 MAP
GEONET Wellington Jul 28 20:25 1.7 30 MAP
GEONET Seddon Jul 28 20:21 3.7 11 MAP I Felt It INFO
GEONET Seddon Jul 28 20:07 2.0 5 MAP
GEONET Nelson Jul 28 19:55 3.3 89 MAP
GEONET Seddon Jul 28 19:33 1.7 5 MAP
GEONET Seddon Jul 28 19:30 3.0 7 MAP
GEONET Seddon Jul 28 19:28 2.2 5 MAP
GEONET Seddon Jul 28 19:13 2.7 5 MAP
GEONET Seddon Jul 28 19:11 2.0 11 MAP
GEONET Seddon Jul 28 19:00 3.3 11 MAP I Felt It INFO
GEONET Seddon Jul 28 18:43 2.6 5 MAP
GEONET Seddon Jul 28 18:40 1.8 5 MAP
GEONET Seddon Jul 28 18:26 2.3 5 MAP
GEONET Seddon Jul 28 18:22 1.8 5 MAP
GEONET Seddon Jul 28 18:19 2.7 16 MAP
GEONET Seddon Jul 28 18:12 2.3 5 MAP
GEONET Seddon Jul 28 18:11 1.9 15 MAP
GEONET Seddon Jul 28 17:39 2.3 76 MAP
GEONET Seddon Jul 28 17:12 2.4 5 MAP
GEONET Seddon Jul 28 16:49 2.0 11 MAP
GEONET Seddon Jul 28 16:45 2.1 10 MAP
GEONET Seddon Jul 28 16:34 1.9 5 MAP
GEONET Seddon Jul 28 16:29 1.9 5 MAP
GEONET Seddon Jul 28 16:21 2.3 5 MAP
GEONET Wellington Jul 28 16:18 2.2 56 MAP
GEONET Seddon Jul 28 16:10 2.1 5 MAP
GEONET Seddon Jul 28 15:56 2.1 5 MAP
GEONET Seddon Jul 28 15:54 2.1 7 MAP
GEONET Seddon Jul 28 15:45 2.1 5 MAP
GEONET Seddon Jul 28 15:42 1.8 7 MAP
GEONET Seddon Jul 28 15:39 3.0 16 MAP I Felt It INFO
GEONET Seddon Jul 28 15:35 1.8 5 MAP
GEONET Seddon Jul 28 15:25 1.9 5 MAP
GEONET Seddon Jul 28 15:21 2.5 5 MAP
GEONET Seddon Jul 28 15:10 2.1 5 MAP
GEONET Seddon Jul 28 15:04 2.2 5 MAP
GEONET Seddon Jul 28 15:00 2.1 7 MAP
GEONET Seddon Jul 28 14:54 2.7 5 MAP
GEONET Seddon Jul 28 14:42 2.3 8 MAP
GEONET Seddon Jul 28 14:38 1.9 5 MAP
GEONET Seddon Jul 28 14:35 3.5 16 MAP
GEONET Seddon Jul 28 14:31 3.5 6 MAP
GEONET Seddon Jul 28 14:29 2.8 5 MAP
GEONET Seddon Jul 28 14:28 2.0 5 MAP
GEONET Seddon Jul 28 14:26 2.0 5 MAP
GEONET Seddon Jul 28 14:12 3.4 12 MAP I Felt It INFO
GEONET Seddon Jul 28 14:10 2.1 10 MAP
GEONET Seddon Jul 28 14:08 1.8 29 MAP
GEONET Seddon Jul 28 14:05 2.3 5 MAP
GEONET Blenheim Jul 28 14:01 1.9 11 MAP
GEONET Seddon Jul 28 13:59 2.5 5 MAP
GEONET Seddon Jul 28 13:57 2.9 14 MAP
GEONET Seddon Jul 28 13:50 2.0 5 MAP
GEONET Seddon Jul 28 13:48 2.1 5 MAP
GEONET Seddon Jul 28 13:46 2.3 10 MAP
GEONET Seddon Jul 28 13:41 3.3 11 MAP
GEONET Seddon Jul 28 13:37 2.0 7 MAP
GEONET Seddon Jul 28 13:31 2.1 5 MAP
GEONET Seddon Jul 28 13:30 2.4 5 MAP
GEONET Seddon Jul 28 13:29 2.3 5 MAP
GEONET Seddon Jul 28 13:27 2.0 14 MAP
GEONET Seddon Jul 28 13:24 2.3 25 MAP
GEONET Seddon Jul 28 13:22 1.9 5 MAP
GEONET Wellington Jul 28 13:20 2.6 26 MAP
GEONET Seddon Jul 28 13:18 3.0 11 MAP
GEONET Blenheim Jul 28 13:13 3.2 5 MAP
GEOFON Cook Strait, New Zealand Jul 28 13:07 4.9 19 MAP
GEONET Seddon Jul 28 13:07 5.4 12 MAP I Felt It INFO
  • New Plymouth - Very slight shaking while lying in bed. Like a loaded truck passing by house
  • Wellington - Woken up. Shaking lasted a while.
  • EMSC Cook Strait, New Zealand Jul 28 13:07 4.9 15 MAP
    USGS Cook Strait, New Zealand Jul 28 13:07 4.9 10 MAP
    GEONET Seddon Jul 28 13:01 2.1 5 MAP
    GEONET Seddon Jul 28 12:59 1.9 5 MAP
    GEONET Seddon Jul 28 12:56 2.8 9 MAP
    GEONET Blenheim Jul 28 12:54 2.0 9 MAP
    GEONET Seddon Jul 28 12:41 1.7 20 MAP
    GEONET Seddon Jul 28 12:23 2.3 5 MAP
    GEONET Seddon Jul 28 12:14 2.8 5 MAP
    GEONET Seddon Jul 28 12:11 1.8 5 MAP
    GEONET Seddon Jul 28 12:09 1.7 14 MAP
    GEONET Seddon Jul 28 11:53 1.5 14 MAP
    GEONET Seddon Jul 28 11:39 2.1 7 MAP
    GEONET Seddon Jul 28 11:26 2.2 10 MAP
    GEONET Seddon Jul 28 11:13 2.5 5 MAP
    GEONET Seddon Jul 28 11:05 2.1 11 MAP
    GEONET Seddon Jul 28 10:52 2.0 9 MAP
    GEONET Seddon Jul 28 10:45 2.3 10 MAP
    GEONET Seddon Jul 28 10:33 1.8 5 MAP
    GEONET Seddon Jul 28 10:17 1.9 10 MAP
    GEONET Seddon Jul 28 10:03 1.9 5 MAP
    GEONET Seddon Jul 28 10:01 2.3 14 MAP
    GEONET Seddon Jul 28 09:56 1.9 5 MAP
    GEONET Seddon Jul 28 09:50 2.3 5 MAP
    GEONET Seddon Jul 28 09:31 2.1 5 MAP
    GEONET Seddon Jul 28 09:24 2.1 5 MAP
    GEONET Seddon Jul 28 09:16 3.4 7 MAP
    GEONET Seddon Jul 28 09:15 3.7 11 MAP
    GEONET Seddon Jul 28 09:14 3.4 5 MAP
    GEONET Wellington Jul 28 09:12 2.8 9 MAP
    GEONET Seddon Jul 28 09:12 2.7 5 MAP
    GEONET Seddon Jul 28 09:04 2.8 6 MAP
    GEONET Seddon Jul 28 09:02 1.7 5 MAP
    GEONET Seddon Jul 28 08:59 2.4 5 MAP
    GEONET Seddon Jul 28 08:56 2.4 5 MAP
    GEONET Seddon Jul 28 08:38 2.2 8 MAP
    GEONET Seddon Jul 28 08:32 1.6 5 MAP
    GEONET Seddon Jul 28 08:27 3.0 17 MAP I Felt It INFO
    GEONET Seddon Jul 28 08:18 2.1 8 MAP
    GEONET Seddon Jul 28 08:08 2.1 8 MAP
    GEONET Seddon Jul 28 08:06 1.6 6 MAP
    GEONET Seddon Jul 28 07:51 2.1 11 MAP
    GEONET Seddon Jul 28 07:21 2.1 9 MAP
    GEONET Seddon Jul 28 07:18 2.0 5 MAP
    GEONET Seddon Jul 28 06:57 2.2 5 MAP
    GEONET Seddon Jul 28 06:48 2.2 5 MAP
    GEONET Seddon Jul 28 06:43 1.8 8 MAP
    GEONET Seddon Jul 28 06:12 2.2 5 MAP
    GEONET Seddon Jul 28 06:11 1.6 5 MAP
    GEONET Seddon Jul 28 06:06 1.9 5 MAP
    GEONET Seddon Jul 28 06:04 1.8 5 MAP
    GEONET Seddon Jul 28 05:16 1.7 10 MAP
    GEONET Wellington Jul 28 05:14 1.5 23 MAP
    GEONET Seddon Jul 28 04:59 2.4 5 MAP
    GEONET Seddon Jul 28 04:39 1.9 8 MAP
    GEONET Seddon Jul 28 04:33 2.9 5 MAP I Felt It INFO
    GEONET Picton Jul 28 04:29 1.8 12 MAP
    GEONET Seddon Jul 28 04:18 1.9 17 MAP
    GEONET Seddon Jul 28 04:14 2.2 5 MAP
    GEONET Seddon Jul 28 04:10 2.6 11 MAP
    GEONET Seddon Jul 28 03:42 2.2 24 MAP
    GEONET Seddon Jul 28 03:31 2.2 5 MAP
    GEONET Seddon Jul 28 02:52 2.4 5 MAP
    GEONET Seddon Jul 28 02:50 1.8 5 MAP
    GEONET Seddon Jul 28 02:33 2.0 5 MAP
    GEONET Seddon Jul 28 02:25 2.3 5 MAP
    GEONET Seddon Jul 28 02:14 1.7 7 MAP
    GEONET Seddon Jul 28 02:09 3.7 13 MAP I Felt It INFO
    GEONET Seddon Jul 28 01:58 2.0 62 MAP


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    SHARE YOUR EARTHQUAKE EXPERIENCE WITH US

    I felt the shaking *
    Country where you felt the earthquake *
    City/Village where you felt the earthquake *
    Street or suburb (area) where you felt the earthquake
    Latitude (area) where you felt the earthquake
    Longitude (area) where you felt the earthquake
    Shaking Strength *
    MMI II (Very weak shaking) ?
    People :
    Felt by persons at rest, on upper floors or favorably placed.
    MMI III (Weak shaking) ?
    People :
    Felt indoors; hanging objects may swing, vibration similar to passing of light trucks, duration may be estimated, may not be recognized as an earthquake.
    MMI IV (Light shaking) ?
    People :
    Generally noticed indoors but not outside. Light sleepers may be awakened. Vibration may be likened to the passing of heavy traffic, or to the jolt of a heavy object falling or striking the building.
    Fittings :
    Doors and windows rattle. Glassware and crockery rattle. Liquids in open vessels may be slightly disturbed. Standing motorcars may rock.
    Structures :
    Walls and frames of buildings, and partitions and suspended ceilings in commercial buildings, may be heard to creak.
    MMI V (Moderate shaking) ?
    People :
    Generally felt outside, and by almost everyone indoors. Most sleepers awakened. A few people alarmed.
    Fittings :
    Small unstable objects are displaced or upset. Some glassware and crockery may be broken. Hanging pictures knock against the wall. Open doors may swing. Cupboard doors secured by magnetic catches may open. Pendulum clocks stop, start, or change rate.
    Structures :
    Some large display windows cracked. A few earthenware toilet fixtures cracked.
    MMI VI (Strong shaking) ?
    People Felt by all. People and animals alarmed. Many run outside. Difficulty experienced in walking steadily.
    Fittings :
    Objects fall from shelves. Pictures fall from walls. Some furniture moved on smooth floors, some unsecured free-standing fireplaces moved. Glassware and crockery broken. Very unstable furniture overturned. Small church and school bells ring. Appliances move on bench or table tops. Filing cabinets or "easy glide" drawers may open (or shut).
    Structures :
    Slight damage to buildings with low standard. Some stucco or cement plaster falls. Large display windows broken. Damage to a few weak domestic chimneys, some may fall.
    Environment :
    Trees and bushes shake, or are heard to rustle. Loose material may be dislodged from sloping ground, e.g. existing slides, talus slopes, shingle slides.
    MMI VII (Very strong shaking) ?
    People
    General alarm. Difficulty experienced in standing. Noticed by motorcar drivers who may stop.
    Fittings :
    Large bells ring. Furniture moves on smooth floors, may move on carpeted floors. Substantial damage to fragile contents of buildings.
    Structures :
    Unreinforced stone and brick walls cracked. Low standard buildings cracked with some minor masonry falls. A few instances of damage to buildings of ordinary workmanship. Unbraced parapets, unbraced brick gables, and architectural ornaments fall. Roofing tiles, especially ridge tiles may be dislodged. Many unreinforced domestic chimneys damaged, often falling from roof-line. Water tanks Type I burst. A few instances of damage to brick veneers and plaster or cement-based linings. Unrestrained water cylinders (hot-water cylinders) may move and leak. Some common windows cracked. Suspended ceilings damaged.
    Environment :
    Water made turbid by stirred up mud. Small slides such as falls of sand and gravel banks, and small rock-falls from steep slopes and cuttings. Instances of settlement of unconsolidated or wet, or weak soils. Some fine cracks appear in sloping ground. A few instances of liquefaction (i.e. small water and sand ejections).
    MMI VIII (Severe shaking) ?
    People Alarm may approach panic. Steering of motorcars greatly affected. Structures : Low standard buildings heavily damaged, some collapse. ordinary workmanship buildings damaged, some with partial collapse. Reinforced masonry or concrete buildings damaged in some cases. A few instances of damage to buildings and bridges designed and built to resist earthquakes. Monuments and pre-1976 elevated tanks and factory stacks twisted or brought down. Some pre-1965 infill masonry panels damaged. A few post-1980 brick veneers damaged. Decayed timber piles of houses damaged. Houses not secured to foundations may move. Most unreinforced domestic chimneys damaged, some below roof-line, many brought down. Environment : Cracks appear on steep slopes and in wet ground. Small to moderate slides in roadside cuttings and unsupported excavations. Small water and sand ejections and localized lateral spreading adjacent to streams, canals, lakes, etc.
    MMI IX (Violent shaking) ?
    Structures Many low standard buildings destroyed. Ordinary workmanship buildings heavily damaged, some collapse. Reinforced masonry or concrete buildings damaged, some with partial collapse. Buildings and bridges designed and built to resist earthquakes damaged in some cases, some with flexible frames seriously damaged. Damage or permanent distortion to some buildings and bridges, designed and built to normal use standards. Houses not secured to foundations shifted off. Brick veneers fall and expose frames. Environment : Cracking of ground conspicuous. Landsliding general on steep slopes. Liquefaction effects intensified and more widespread, with large lateral spreading and flow sliding adjacent to streams, canals, lakes, etc.
    Tell us your experience and how many seconds the shaking lasted + let us know if your property has been damaged (even slight damage). (max. 500 characters)
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