NERV Disaster Prevention review
Japan-focused forecasts and hazard alerts, with core information available for free.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
For people living in or visiting Japan, NERV Disaster Prevention brings location-based weather information and disaster warnings into a smartphone app. It covers weather and typhoon forecasts, rain-cloud radar, temperature and wind, alongside alerts for earthquakes, tsunamis and volcanic activity. Flood, landslide, heavy-rain and river-level information broaden its scope beyond a conventional forecast app. It is available on Android and iOS, and suits users who want hazard notifications in addition to everyday weather updates.
The app’s map is a notable part of that coverage: users can view rain radar and switch among layers for cloud cover, typhoon forecasts, tsunami warnings and earthquake intensity. Critical notifications address imminent hazards, while location-based alerts connect information to places users care about. Lightning information is updated every minute; other frequently updated information is reflected promptly. The combination is useful for people who want weather and disaster information in one mobile tool, rather than a forecast-only app.
Core app information remains accessible to all users, according to the vendor, while optional Supporters’ Club memberships add features. The E Plan includes more registered locations, a digital membership card, incoming rain alerts, early access features and a Crisis Mapping Editors Role. EE adds members-only content to those benefits. These memberships are not required to use the core app, and subscription prices may vary by account country or region. NERV is a fit for Japan-focused hazard awareness; users seeking weather coverage outside Japan or a desktop app should look elsewhere.
NERV Disaster Prevention pros and cons
- Where it wins
- Combines weather forecasts and rain radar with hazard alerts.
- Covers earthquakes, tsunamis, volcanoes, floods and landslides.
- Map layers include typhoon forecasts and earthquake intensity.
- Where it doesn't
- Designed for people living in or visiting Japan.
- Paid memberships add features, but fees are not stated here.
- Mobile-only, with no desktop deployment.
NERV Disaster Prevention fact sheet, pricing and score →
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