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The colourful skies awash with the Aurora Australis (Tahu-nui-a-rangi) witnessed by many throughout Aotearoa New Zealand over the weekend were caused by a geomagnetic storm or ‘solar storm’. Read on as we take a closer look at space weather and see how it’s recorded by our monitoring instruments across the country.

2 weeks ago

If you’re an avid follower of GeoNet or a regular felt report submitter, you might have noticed that a few felt earthquakes over the past month have been near each other. Read on to find out a little more on this pattern and what the science is behind it.

Welcome, haere mai to another GeoNet Data Blog. Today’s blog is about steps a data user might take on their journey with GeoNet data.

In March, GeoNet took a major step towards automating the monitoring of our active volcanoes by establishing MultiGas systems to collect data at Ngauruhoe and Te Maari Crater, in the Tongariro National Park.

Over the past few weeks, we have taken a closer look into the Hikurangi Subduction Zone, Aotearoa New Zealand’s largest plate-boundary fault, sharing information and the research underway to better understand it. Now we focus on what it means for you at home and how you can prepare.

Welcome, haere mai to another GeoNet Data Blog. Today’s blog is about visitors to the GeoNet web site, especially which countries they come from and what material they are looking at.

We recently took a deep dive into what, and where the Hikurangi Subduction Zone is. Today we are going to look at how we monitor and build up our understanding of our largest plate-boundary fault, and better understand its potential impact.

Although the unusual earthquakes have continued under Mt Ruapehu, our other monitored parameters have not changed. We continue to measure low-moderate volcanic gas emissions, a slow decline in lake temperature and water level. The last gas flight, Crater Lake water and gas analysis, and visual observations show no changes. A sudden eruption at Mt Ruapehu remains very unlikely. The Volcanic Alert Level remains at 1 and the Aviation Colour Code at Green.

In the North Island of Aotearoa New Zealand, we have our largest plate-boundary fault, the Hikurangi subduction zone. It’s the largest source of earthquake and tsunami hazard in New Zealand. Over the next few weeks, we will take a closer look at this fault and what it means for us.

Recent flights over Whakaari/White Island to measure gas emissions and observe surface activity showed continued hydrothermal activity, including minor geysering. Low to moderate gas and steam emissions continue. There is no evidence of any volcanic eruptions, and the overall activity remains low. The Volcanic Alert Level remains at level 2.