Millions of Californians and even tourists will soon receive earthquake warnings on their Android phones without having to download an app, Google and the state announced Tuesday. The technology acts as an early warning system for earthquakes and informs people who are located some distance from the epicenter that an earthquake is about to occur.
Residents who want to get earthquake early detection should download the MyShake app, which is available on the Apple Store and Google Play. Earthquake early detection can also be achieved through ShakeAlertLA, developed by the City of Los Angeles for L.A. County residents, and My Shake, developed by the University of Berkeley.
To get key metrics, the app sends silent warnings to get valuable real-time information about the magnitude, location, and timing of the earthquake – which do not interrupt the user when using the apps. Such data is crucial for the assessment of strategies for the provision and communication of alerts. Earthquake early warnings can be sent with a wireless emergency warning system that offers amber alerts, similar to SMS. An earthquake warning system is a success when it can send thousands or millions of messages to affected users with low latency to the affected user.
The app monitors a sudden change in motion, which is analyzed by an algorithm designed to distinguish between a normal earthquake and an earthquake of magnitude 5.0 or higher. When this happens, the sensor sends a signal to the Google server for earthquake detection about the tremors it has detected. When the phone detects an earthquake it thinks is possible, it sends signals to the earthquake – detection servers at rough locations where the quake occurs.
Now that Google has more confidence in the accuracy of the system, it has begun to actively send earthquake warnings to people living in areas where there is no seismometer-based warning system.
Google initially worked with the US Geological Survey (USGS) and California’s Department of Natural Resources (DNR) to send the agency’s earthquake warnings to Android users in the state. Google sent the warnings with the existing data from a program launched by the U.S. GSGS and the governor’s office that collects data on a network of more than 700 seismometers in California.
At ShakeAlertLA, the state system uses ground motion sensors to detect if an earthquake has already begun and assess its size, location, and impact. The system will collect and collect data from phones that are on the ground during the earthquake and share it with others near the epicenter to provide an early warning of the earthquake’s arrival. Television broadcasts are interrupted by announcers providing details of the expected quake, mobile phones automatically send out acoustic warnings, and early warnings are part of Japanese life. Schoolchildren are trained to hold, cover or drop themselves when they hear the alarm, and they are held or covered when the shaking begins. As with other early warning systems, a warning is issued that an imminent earthquake will occur within minutes, depending on the distance a person is from an epicenter.