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Tsunami & Earthquake Alerts.Stay informed. Stay prepared.
Real-time tsunami alerts, earthquake monitoring, and coastal safety guidance for the places and people that matter most.
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Real-time tsunami alerts, earthquake monitoring, and coastal safety guidance for the places and people that matter most.
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"This app gives me peace of mind at my beachside home."
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Saved Locations
Protect the Places — and the People — That Matter Most
- Save locations around the world — your home, a family member's address, a holiday house — and receive tailored tsunami and earthquake alerts for each one.
- Home Country Protection uses your phone's live GPS to confirm whether you're inside an active warning zone, so alerts are relevant to where you actually are, not just where you've been. Imagine you're at a local beach and a tsunami alert is issued — you'll be notified immediately.
- Set individual earthquake magnitude thresholds per location — tighter for coastal areas, broader for inland — so every alert you receive is meaningful, not noise.
- Toggle tsunami and earthquake monitoring independently for each location, giving you precise control without having to manage separate accounts or apps.
- Peace of mind that goes beyond yourself: monitor Mum's house in Hawaii, your partner's workplace, and your beach house — all from one screen.
Who is Tsunami Shield for?
Tsunami Shield is built for anyone who lives, travels, or has people they love near the coast.
- Coastal residents
- Beachgoers and water sports enthusiasts
- International travellers
- Families with loved ones in coastal regions
- Emergency preparedness enthusiasts
Evacuation Guidance
Don't guess
where to go.
We'll show you.
When a warning is issued, confusion is the enemy. Get immediate turn-by-turn walking directions to the nearest high ground.
Step-by-step routing
Clear, high-contrast walking directions to safety.
Your route on a map
Step-by-step routing shows your full walking path to high ground on a clear, easy-to-follow map.
Tsunami Shield Globe
See Threats on Earth, the Moment they Happen
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- A live interactive globe shows significant earthquakes and active tsunami warnings in real time — refreshed every 15 seconds, no manual refresh needed.
- Colour-coded magnitude markers (M2.5 through M6.0+) give you an instant read on severity, with concentric rings marking active tsunami watches or warnings, so you know exactly where the threat is.
- An urgent red banner appears at the top of the screen the instant an Active Tsunami Warning is issued — tap it for full details in seconds.
- Rotate, zoom and explore any coastline on Earth, so you can check on regions you care about whether you're near them or not.
- Tracks 100+ seismic events simultaneously, giving you a full picture rather than just what's near you.
Emergency Assistance
More than alerts.
Real help when it matters.
- Instantly see your local emergency number — automatically detected from your location, no matter which country you're in.
- Access emergency numbers for other countries with a single tap, so you're never caught off guard while travelling.
- One-tap "I am safe" or if you're in distress "I need help" messaging including live GPS coordinates.
- Save emergency contacts directly in the app so they're ready to reach instantly — no searching through your phone when it matters most.
- Add emergency contacts in advance so messages reach the right people instantly when every second matters.
Travel Mode
Alerts that follow you
when you travel.
Travel Mode — stay monitored wherever your journey takes you.
- Protection that travels with you. Heading overseas? Simply tell Tsunami Shield where you're going and it will monitor those countries for tsunami alerts in real time — just like it does for home.
- Set it up in seconds. Add the countries you're visiting, set your travel dates, and Travel Mode takes care of the rest. Your destination alerts appear directly in My Active Alerts on your home screen — no extra steps needed.
- Never miss a warning at your destination. Whether you're in a hotel, on a tour, or exploring a coastal area, Tsunami Shield is quietly monitoring your travel countries in the background and will alert you the moment a warning is issued.
- Built for frequent travellers and families. Monitor multiple countries at once — ideal for multi-stop trips, family members travelling separately, or anyone with loved ones living or visiting abroad.
- Pair it with Destination Safety Check. Research your destination's historical tsunami risk before you leave, then activate Travel Mode the moment you arrive — a complete safety solution from planning to return.
Up and running in under a minute
How it works
Setup takes less than a minute. After that, we monitor the oceans so you don't have to.
Install & Set Locations
Add your home, family & friends addresses, your upcoming travel destinations, and countries to monitor.
We Monitor 24/7
Our servers continuously aggregate data from official agencies like NOAA, GeoNet, and USGS.
Instant Delivery
The moment a threat is verified, a critical alert reaches your device — even on silent.
Destination Safety Check
Know the risk before you arrive.
- Research before you travel — search a country to instantly see its historical tsunami risk rating before you book, pack, or board.
- Built on real scientific data — risk ratings are derived from NOAA historical tsunami records and USGS tectonic plate boundary data, giving you a research-backed picture of coastal hazard levels.
- Simple, visual risk ratings — at-a-glance colour-coded ratings and risk indicators tell you what you need to know, no jargon required.
- Perfect for travellers, families and travel planners — know the coastal risk profile of any destination in seconds, whether you're booking a beach holiday or sending family overseas.
- A smarter way to prepare — pair Destination Safety Check with Travel Mode to stay actively monitored for tsunami alerts the moment you arrive.
Global Watch
Global Watch lets you monitor countries for tsunami or earthquake activity.
- Monitor multiple countries in real-time.
- Be alerted for tsunami activity, earthquakes or both.
- Choose a Minimum Magnitude to avoid being notified of low-level earthquake activity.
Recent Earthquakes
Stay One Step Ahead — Every Significant Quake, Ranked and Ready
- A continuously updated feed of recent earthquakes from around the world, sourced directly from USGS — so you're never relying on second-hand news.
- Filter by minimum magnitude (M4.5 through M7.0+) to tune out background noise and focus on the events that matter most to you.
- Each entry shows the exact location, local time, UTC time, and depth — the details that matter for assessing whether a quake poses a tsunami risk.
- Tap any earthquake to see the full event breakdown, including its proximity to your saved locations.
- Knowing what's happening seismically — before a tsunami warning is issued — gives you a critical head start if you're in or near a coastal area.
Official Sources
Data sourced directly from NOAA, GeoNet, GDACS, USGS and other trusted sources. No human editorial delay.
Breaks Silent Mode
Critical warnings override silent switches and Do Not Disturb settings. Never sleep through a threat.
Multi-Region Coverage
Protect your home, monitor your travel destinations, and keep an eye on family abroad.
Your safety shouldn't cost your privacy
Tsunami Shield is built on privacy by design. We don't collect your name, email, or contact details — only the minimum location data needed to deliver life-saving alerts for your area. We never sell your personal data.
Read our Privacy Policy Frequently asked questions
Questions, answered
Everything you need to know about staying protected with Tsunami Shield.
What is Tsunami Shield and how does it work?
Tsunami Shield is a mobile safety app for iOS and Android that delivers real-time tsunami and earthquake alerts. It continuously monitors official warning sources for the locations you care about and sends you a critical notification the moment a threat is verified — so you have the precious extra minutes that matter most.
How does Tsunami Shield send alerts even when my phone is on silent or Do Not Disturb?
Tsunami Shield uses dedicated emergency alert pathways designed to bypass your phone's silent switch and Do Not Disturb schedules. For verified critical warnings, it forces sound and vibration with clear, unmistakable alarm tones so the alert can wake you up — day or night. These critical alerting capabilities are approved for distribution on the Apple App Store and Google Play, and Tsunami Shield is built to fully abide by Apple's and Google's requirements and guidelines for time-sensitive and critical safety notifications.
Where does Tsunami Shield get its tsunami and earthquake data?
All alerts are sourced from official government agencies and monitoring networks such as NOAA, USGS, GeoNet, GDACS and other trusted sources. Our servers aggregate this data 24/7 and only send a critical alert once a threat has been verified, which helps reduce false alarms.
Is Tsunami Shield available for both iPhone and Android?
Yes. Tsunami Shield is designed for mobile phones and is available on both the Apple App Store for iPhone and on Google Play for Android devices. The same real-time alerting and location monitoring features are available on both platforms.
Can I receive alerts for family, friends, or travel destinations in other countries?
Absolutely. You can add your home, the addresses of family and friends, your upcoming travel destinations, and any countries you want to keep an eye on. Tsunami Shield monitors all of them at once, so you stay informed about the people and places that matter to you — wherever they are.
Can I trial the app for free?
Tsunami Shield offers a 3 day free trial so you can experience the full app before committing. We have monthly or annual plans based on your requirements; you can start your free trial directly from the App Store or Google Play, and cancel anytime.
Does Tsunami Shield protect my privacy and personal data?
Yes. Tsunami Shield is built on privacy by design. We don't collect your name, email, or contact details — only the minimum location data needed to deliver life-saving alerts for your area. We never sell your personal data.
Have a question?
Whether it's a subscription query, a technical issue, or just a general enquiry — we're here to help.
Send us a message