Fire Earth

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Posts Tagged ‘North Island’

‘Strong’ Quake Strikes Wellington, New Zealand

Posted by feww on October 22, 2015

M4.4 strikes 30km east of NZ capital

Centered at 41.20S, 175.08E, the quake occurred at a depth of 6km, according to geonet.org.nz

Date/Time: October 22 2015, 9:43:59UTC

There were no immediate reports of damage, however the quake was described as “huge” in online chatter.

Search blog content for additional information concerning seismicity of New Zealand.

Recent Earthquakes – NZ Region

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‘Severe’ Earthquake Strikes North Island, NZ

Posted by feww on October 12, 2015

Magnitude 5.8 quake rattles lower North Island, New Zealand

Centered at 40.58ºS, 176.3ºE, about 15km east of Pongaroa, the quake struck at a depth of 24km, according to NZ’s earthquake monitoring center, geonet.

EQ Details [USGS/EHP]

  • Magnitude: 5.4Mw
  • Location: 40.651°S, 176.426°E; depth=21.4 km (13.3 mi)
  • Date/Time: 2015-10-12 at 08:05:00(UTC)
  • Nearby Cities:
    • 32km (20mi) NNE of Castlepoint, New Zealand
    • 73km (45mi) ENE of Masterton
    • 76km (47mi) ESE of Palmerston North
    • 97km (60mi) E of Levin, New Zealand
    • 155km (96mi) ENE of Wellington

The quake was felt within a radius of at least 250km from the epicenter, with thousands of felt report sent to earthquake monitoring center within 30 minutes of the quake occurring, according to various reports.

Search blog content for additional information concerning seismicity of New Zealand.

 

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Earthquake Cluster Zone Closing in on New Zealand

Posted by feww on October 6, 2008

Another Powerful Quake Hits Kermadec Isles Region

A magnitude 6.5 earthquake followed by two strong aftershocks hit the Kermadec Islands region in line with FEWW forecast.


10-degree Map Centered at 30°S,175°W


Raoul Island, Kermadec Islands, Global Reference Map. USGS


FEWW Comments:

  • The center of earthquake cluster incidence within the epicentral region of the  Kermadec Trench appears to be shifting south-southwest of its historical position, and closer to New Zealand North Island.
  • According to FEWW analysis a magnitude 8+ earthquake would likely strike the Kermadec Isles epicentral region centered in an area about 285km SSE of Raoul Island [~900km NE of Auckland, New Zealand] before the New Year. Since 1900 only one other earthquake with a magnitude of 8 has struck the region. [1917 May 1 18:26 UTC, Depth: 60 km – USGS data]

Tectonic Setting

Kermadec Trench – Epicentral Region. Image Credit: USGS

Related Links:

Main Shock

Magnitude: 6.5
Date-Time: Sunday, October 05, 2008 at 09:12:40 PM at epicenter
Location: 30.327°S, 177.195°W
Depth: 35 km (21.7 miles) set by location program
Region: KERMADEC ISLANDS, NEW ZEALAND
Distances:

  • 135 km (85 miles) SSE of Raoul Island, Kermadec Islands
    205 km (125 miles) NE of L’Esperance Rock, Kermadec Islands
    1035 km (650 miles) NE of Auckland, New Zealand
    1410 km (880 miles) NNE of WELLINGTON, New Zealand

Location Uncertainty: horizontal +/- 11.3 km (7.0 miles); depth fixed by location program
Source: USGS NEIC
Event ID    us2008xuan

Aftershocks

1. Magnitude:    5.2
Date-Time: Sunday, October 05, 2008 at 10:45:00 UTC [ October 05, 2008 at 10:45:00 PM at epicenter]
Location:    30.856°S, 176.659°W
Source:    USGS NEIC (WDCS-D)
Event ID: us2008xuas

2. Magnitude:    5.2
Date-Time:  Sunday, October 05, 2008 at 14:09:50 UTC [October 06, 2008 at 02:09:50 AM at epicenter]
Location: 31.156°S, 177.721°W
Source: USGS NEIC
Event ID:  us2008xua8

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