Archive for the ‘Earthquakes – Analysis’ Category

Japan’s Earthquake Early Warning System

Saturday, September 16th, 2017

Japan has a well-developed public warning system to alert its population to the possibility of strong shaking from earthquakes. The system is automated and includes tsunami warnings.


Mexico: Earthquake Early Warning Worked

Wednesday, September 13th, 2017

Mexico City’s earthquake early warning system worked well on Friday, giving residents more than a minute’s warning before shaking from the magnitude eight Chiapas earthquake reached the city.


Kaikoura Earthquake 2016

Sunday, November 27th, 2016

The 2016 Kaikoura earthquake was one of the four largest earthquakes to strike mainland New Zealand in 160 years.


Between a Rock and a Hard Place

Sunday, September 11th, 2016

The Ministry of Civil Defence and Emergency Management found itself between a rock and a hard place when a major earthquake struck off East Cape early on the morning of Friday 2nd September. Was a tsunami generated? Should people living in low-lying areas on the coast evacuate or should they stay put?


Tsunami Hazards and Evacuation Zones

Friday, September 9th, 2016

With the recent East Cape earthquake still present in memory, it is an appropriate time for people in coastal areas and identified tsunami evacuation zones to review their plans. This short video may help.


Matata Swarms Not Tectonic

Saturday, June 4th, 2016

Research by GNS Science has overturned the view that the swarms of earthquakes centred near Matata in recent years were caused by tectonic activity.


Darfield Quake ”“ New Findings

Friday, April 15th, 2011

Detailed analysis of last September’s Darfield earthquake has confirmed that it was a complex event, with many similarities to the Haiti earthquake in January last year.


Canterbury Aftershock

Thursday, January 20th, 2011

A moderately strong earthquake struck Canterbury this morning, the seventh largest aftershock of the Darfield earthquake.


Darfield Quake Sets Records Here and Abroad

Wednesday, December 15th, 2010

September’s magnitude seven earthquake in Canterbury is the largest ever insurance event in New Zealand, and probably ranks as the fifth most costly earthquake globally.


Darfield Quake ”“ Facts at a Glance

Saturday, November 6th, 2010

It is now two months since the shallow magnitude 7.1 earthquake struck near Darfield in Canterbury. The aftershocks continue, and residents who suffered damage are now working through the issues as they repair or replace damaged buildings and contents.


Geological Summary for New Zealand Area, April 2010

Friday, May 21st, 2010

Earthquake activity declined. White Island and Mt. Ruapehu remained at Alert Level 1. A swarm of quakes followed a slow-slip event near Tolaga Bay, and a slow-slip event continued beneath Poverty Bay.


Bay of Plenty Tremors Continue

Thursday, May 20th, 2010

A swarm of undersea earthquakes in the Bay of Plenty kept some residents awake overnight.


Geological Summary for New Zealand Area, March 2010

Wednesday, May 12th, 2010

Earthquake activity continued at a steady rate. White Island and Mt. Ruapehu remained at Alert Level 1. A slow-slip event was detected near Gisborne.


Geological Summary for New Zealand Area, February 2010

Tuesday, May 11th, 2010

Earthquake activity remained steady. White Island and Mt. Ruapehu remained at Alert Level 1. A tsunami warning was issued for coastal communities. Slow-slip events occurred near Gisborne and Hawke’s Bay.


Geological Summary for New Zealand Area, January 2010

Thursday, April 15th, 2010

Earthquake activity increased. White Island and Mt. Ruapehu remained at Alert Level 1. No tsunami alerts were raised.