Japan Alerts - Earthquake

Japan Alerts delivers real-time earthquake, tsunami, volcano, and typhoon alerts from the Japan Meteorological Agency (JMA) — translated into 10 languages.

Whether you live in Japan, are planning a trip, or want to keep an eye on a loved one there, Japan Alerts keeps you informed with clear, accurate, and instant disaster notifications.

REAL-TIME ALERTS
- Earthquake alerts with Shindo intensity scale and magnitude
- S-wave arrival countdown for emergency alerts: know how many seconds before shaking reaches you
- Tsunami risk warnings with affected coastal areas
- Volcanic eruption bulletins with interactive volcano map
- Typhoon tracking and severe weather alerts

FAMILY SAFETY
- Create a family group and see everyone's status on a shared map
- "I'm Safe" check-in button with automatic reminders
- Get notified instantly when a family member is in an affected zone
- Set a meeting point at a nearby shelter for your household
- Perfect for families split between Japan and abroad

10 LANGUAGES
All alerts are translated into English, Japanese, French, Chinese, Korean, German, Spanish, Italian,
Portuguese, and Russian. No more struggling with Japanese-only emergency information.

WATCH ZONES
Free users receive alerts for moderate earthquakes (Shindo 4+) near their location and strong quakes (Shindo 6-) across all of Japan.

With Premium, go further:
- Define up to 5 custom watch zones anywhere in Japan
- Set your own Shindo notification threshold per zone
- Monitor where a family member or friend lives
- Traveling to Osaka next month? Add it as a zone before your trip

INTERACTIVE MAP & SHELTERS
- See epicenters, affected areas, and volcano locations at a glance
- Browse 98,000+ official evacuation shelters across all 47 prefectures
- Filter shelters by type: earthquake, tsunami, flood, fire
- Get walking directions to the closest shelter
- Check in at a shelter and see real-time occupancy from other users
- Offline cache: shelter data available even without internet

STAY PREPARED
- SOS button with one-tap access to emergency services (110, 119)