ap7am logo
Logo Bar bseindia nse-india msn yahoo youtube facebook google thehindu bbc ndtv v6 ABN NTv Tv9 etv namasthetelangaana sakshi andhrajyothy eenadu ap7am bhakti espncricinfo wikipedia twitter

Smartphones to warn you of earthquake

Sun, Apr 12, 2015, 04:20 PM
New York, April 12, 2015: Smartphones can function as early warning systems for large earthquakes, says a study.

The study found that the Global Positioning System receivers in a smartphone can detect the permanent ground movement (displacement) caused by fault motion in a large earthquake.

Using crowd-sourced observations from participating users' smartphones, earthquakes could be detected, analysed, and customised earthquake warnings could be transmitted back to users, the researchers observed.

"Crowd-sourced alerting means that the community will benefit by data generated from the community," said lead author Sarah Minson from U.S. Geological Survey (USGS).

Earthquake early warning systems detect the start of an earthquake and rapidly transmit warnings to people and automated systems before they experience shaking at their location.

Researchers tested the feasibility of crowd-sourced EEW with a simulation of a hypothetical magnitude seven earthquake, and with real data from the 2011 magnitude nine Tohoku-oki, Japan earthquake.

The results showed that crowd-sourced EEW could be achieved with only a tiny percentage of people in a given area contributing information from their smartphones.

For example, if phones from fewer than 5000 people in a large metropolitan area responded, the earthquake could be detected and analysed fa
Agency: IANS

Feedback Form

Your IP address: