• Introduction

    Tsunado is a system to distribute Alerts in a Civil Emergency, such as Tsunami, Fire, Flood, Chemical spill, etc.
  • Alerts

    Tsunado Alert radios contain a high intensity alarm, similar to that in a smoke alarm, to get attention any time day or night
  • Information

    Central to the Tsunado Alert Radio is a radio receiver that can deliver the radio signal through a speaker, informing the public of what to do.
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How the Tsunado System Works




How to Buy TSUNADO Alert Radios

TSUNADO Alert Radios are required to be managed by an Alerting Authority. As this has yet to be established in New Zealand, we are unable to sell them direct to the Public.

The TSUNADO System has been ready to go for over two years now, so it is imperative that it be employed ASAP.

Once the Alerting Authorities in your area support TSUNADO, we are able to configure them for that area, and sell them to you.

if you wish to register your interest in purchasing a TSUNADO Alert Radio, the please email us at This email address is being protected from spambots. You need JavaScript enabled to view it. with your contact details.

In the meantime we encourage everyone to speak to their local MP and local Councillors to impress on them the need for an effective public alerting system, and support the TSUNADO System.



White Papers

The Three States of Emergency Public Alerting

Communications related to disaster events are important to save lives. This Paper considers the three types of communication that contribute to an effective strategy to ensure that when disaster strikes, there is minimisation of damage to life and property.

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A Comparison Between Broadcast Radio and Cellular Technologies for Emergency Public Alerting

TSUNADO New Zealand Limited (aka DIWA) has developed a system for nationwide Public Alerting based on Broadcast Radio technologies. The decision to use Broadcast Radio and Satellite systems as the primary communication channel, as opposed to cellular and internet based technologies, is outlined in this White paper.

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Waking a Sleeper

TSUNADOAlert Radios are provided with an internal alert device similar to smoke alarms. This White paper outlines how different and effective the TSUNADO alert is in waking a deep sleeper.

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ALERT Get Attention

The prime function for Tsunado alarms is to get the owner's attention, anytime day or night.

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INFORM Provide Information

The secondary feature, but by no less important, is to inform the owner of what to do.

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Save Keep you Safe

By delivering alerts quickly and informing owners of what to do, Tsunado saves lives.

Read More

Register Your Tsunado Unit

This is where you can Register your Tsunado Unit.

Read More

The Sunlive Newspaper in Tauranga reports that "many people are reporting not getting an alert text message following this morning's 7.1 earthquake and tsunami warning".

This refers to the event on 2nd September 2016, where the BOP Regional Council has to explain why alerts were not received by people who had signed up to the text message alerting system managed by the Council.

Tsunado Technical Director Gary Benner commented that, "even if these messages had been received, the slow process of managing alerts meant that the messages that were being received, arrived at the same time that the waves were hitting our shores. And had it been a major earthquake, that would have been a disaster of monumental proportion."

"Reliance on text and cell phone technologies is unforgivable", says Benner, "given that Tsunado has now been available for at least two years, and proven in three trials held in the BOP and Auckland."

"Texts delivered by SMS and Cell Broadcasting are fine for general information, but they are not an effective alerting platform. They don't wake people up, and they don't demand immediate attention."

Tsunado Alert Radios are designed to deliver emergency alerts quickly and with a very loud alarm. They use Broadcast Radio and Satellite technologies to deliver the alerts, as these have been proven over many years to be the most reliable communications mechanisms during disasters, or any time in fact.

And the Tsunado Alert Radios continue working for 5-10 days without the need for recharging.




On September 3rd, 2015 an earthquake, 7.1 in magnitude, 130km north-east of Te Araroa at a depth of 55km at 4.37am - was felt from Northland to Wellington in the North Island, and in the top of the South Island. Severe reports were felt in Gisborne and the Bay of Plenty.

The earthquake prompted a large response from Civil Defence. Tsunami waves measuring 30 cm were picked up at Gisborne port and the gauge at East Cape.

There were numerous complaints that people did not hear any warning, or that the delays in issuing warning were unacceptable.

As usual, Civil Defence advised people to seek higher ground, and take a radio with them.

TSUNADO Alert Radios have the capability to not only provide news and information from local radio stations, but be activated to sound an alarm that will wake anyone in the house during the night, or above the usual noise of everyday life.

Because the turn on automatically when there is news to be delivered,  TSUNADO Alert Radios have a battery life of 5 to 10 days.

In remote regions such as East Cape, the signals can be delivered via the Optus D1 Satellite used by both Sky Television and Kordia (Freeview). This ensures 100% coverage to all regions of New Zealand.

For more information, please contact Rhys Greensill ( This email address is being protected from spambots. You need JavaScript enabled to view it. ) or Gary Benner ( This email address is being protected from spambots. You need JavaScript enabled to view it. ).








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