In earthquake-prone 日本, outages and network failures are common threats. The concern “What if my cards and mobile apps fail during a disaster?” is legitimate. We analyze the disaster resilience of 本地 cashless networks.
無現金 Systems That Withstand Disasters
- Transit IC / E-Money (NFC): If store terminals have battery backups, NFC systems can process transactions locally offline, queuing transaction records to sync later once internet service recovers.
- Disaster Vending Machines: Many vending machines at evacuation centers trigger offline mode during emergencies, dispensing drinks for free or via a simple tap.
Systems That Fail Instantly
- QR Code Apps: QR systems require real-time database lookups. If cellular towers lose power or networks congest, QR apps become completely useless.
Emergency Cache Checklist
- Stash Paper 現金 and Coins in Emergency Bags: 現金 remains the final line of defense if electricity is fully severed.
- Keep an Active Balance on NFC Cards (Suica): Since it works without carrier signals, it is invaluable for securing transport or food during early evacuation stages.