Despite Japan's advanced early-warning earthquake system, criteria for announcing "secondary earthquake information" have not been met recently. This has resulted in delayed provision of potentially crucial information to the residents, posing risks to their safety. The issues arose from the unexpected seismic activity creating a more complex pattern, leaving the authorities in a challenging position to timely disseminate accurate information.

In Japan, the timely dissemination of earthquake information is crucial as the country sits on a major seismic belt called The Ring of Fire. Prior warning significantly impacts residents' ability to prepare and respond to earthquakes. The current incident has raised questions about the effectiveness and robustness of Japan's early-warning system.

In contrast, the United States or the European Union countries, located in relatively less active seismic zones, have less pressure dealing with high-frequency and high-magnitude seismic events. However, they too are investing in early-warning systems, acknowledging their importance in saving lives and reducing damage.