The Warning Window: A Short but Valuable Gap
When an early warning system signals an incoming earthquake, you have between 30 seconds and 2 minutes depending on how far you are from the epicenter. The greater your distance, the larger the gap between P-wave detection and S-wave arrival. For residents 50 to 100 kilometres from the epicenter, the window can reach 60 to 120 seconds, which is enough time to take meaningful protective action.
What to Do in Those Seconds
Regular rehearsal lets the body respond automatically without conscious decision-making. In the first 10 to 15 seconds: stop all current activity immediately, set down sharp or hot items. From 15 to 30 seconds: move under a sturdy table or stand against a load-bearing wall away from windows; if outdoors, move clear of buildings. From 30 seconds to 2 minutes: if your Smart Home system has not already responded, close the gas valve manually and exit through the pre-planned evacuation route.
ThaiQuake vs Earthquake Network
ThaiQuake is the official TMD app. Data reliability is very high because it comes directly from government monitoring stations, but alert delivery typically takes 60 to 180 seconds after an event. It is best suited for post-event situation tracking and receiving authoritative information.
Earthquake Network was developed by an Italian team and uses crowdsourced smartphone accelerometer data from around the world. Its main advantage is speed: alerts can arrive within 5 to 20 seconds in some cases. It supports the Thai language and has a growing user base across Southeast Asia.
What the EWS Delivers for Residents
Early warning gives time to take shelter, evacuate structurally weak buildings, close the gas supply to prevent fire, alert multiple devices simultaneously, and trigger Smart Home automatic responses. These combined actions can significantly reduce injury and loss of life.
Smart Home Integration
A Smart Home system with MPU6050 and ESP32 works alongside alert apps seamlessly. Whether the trigger is an app notification or direct sensor detection, Home Assistant executes its automation immediately: closing the gas valve, activating emergency lights, unlocking exit doors, and pushing alerts to every device in the home. Families do not need to make decisions in the critical seconds.
Drill Twice a Year
Running a household emergency drill at least twice per year ensures every family member knows exactly what to do. Designate a meeting point outside the building, rehearse evacuation routes in advance, and test the Smart Home system to confirm it responds correctly.