Prevention is a sign of intelligence, maturity and responsibility. Those who anticipate are those who are certain that an effort made today can mean the difference between a lesser evil and a disaster.
The volcanic eruption that occurred in Tonga was equivalent to 4 to 18 megatons of TNT. The shock wave took more than 7 hours to reach the Mexican coast. A suggestion is made to incorporate volcanic explosions into tsunami early warnings.
Sending a brief text message is an alternative that will allow us to interact with our relatives after an earthquake while minimizing the likelihood of a widespread signal loss occurring.