Line was launched in 2011 as a messaging app and was used at the start as a way to communicate during which event?

• A. Earthquake/Tsunami
• B. Tsunami only
• C. Earthquake only
• D. Hurricane

Answer: (A)

This question shows how a messaging app can become essential during a major disaster. When the 2011 Great East Japan Earthquake hit, traditional voice networks quickly became congested or unavailable. LINE offered a data-based way to stay connected, letting people send messages, share updates, and coordinate with family and friends even when phone calls were hard to place. That experience highlighted why the event described is a combination of both an earthquake and a tsunami—the disruption wasn’t just one moment, but the cascade of effects that followed the quake.

So the best answer is Earthquake/Tsunami because the disaster involved both the earthquake itself and the subsequent tsunami. A tsunami only would miss the initial quake, and Earthquake only would miss the tsunami. A hurricane isn’t connected to this event in Japan.