美國研發的手機APP今年共記錄近400次地震

An application, or app, developed by researchers at the University of California, Berkeley, has recorded nearly 400 earthquakes since it was launched in February this year.

加州大學伯克利分校的研究人員開發的一款應用程序，自今年2月發佈以來已經記錄了近400次地震。

The app, called MyShake, runs in the background on smartphones with the Android operating system, harnesses a device's motion detectors to measure ground motion, and then sends that data back to the Berkeley Seismological Laboratory for analysis.

該應用程序名爲MyShake，在安卓操作系統的智能手機後臺運行，利用設備的運動檢測器來測量地面運動，然後將數據發送回伯克利地震實驗室進行分析。

Designed to build a worldwide network of smartphone earthquake detectors, the eventual goal of the researchers is to send early-warning alerts to users a bit farther from ground zero, giving them seconds to a minute of warning that the ground will start shaking and prompting them to switch off equipment.

研究人員旨在建立一個智能手機地震探測器的全球網絡，最終目標是向距離地面零點更遠的用戶發送預警，爲他們提供幾秒到一分鐘的警報，報告地面將開始震動並提示他們關閉設備。

The app can detect quakes as small as magnitude 2.5, with the best sensitivity in areas with a greater density of phones.

該應用程序可以檢測到小至2.5級的地震，在手機密度更大的區域具有最佳靈敏度。

The updated app provides an option for push notifications of recent quakes within a distance determined by the user.

更新版的應用程序提供了在用戶確定距離內的最近地震的推送通知選項。

"The notifications will not be fast initially, not fast enough for early warning, but it puts into place the technology to deliver the alerts and we can then work toward making them faster and faster as we improve our real-time detection system within MyShake," said project leader Richard Allen.

項目負責人理查德·阿倫表示：“這些通知最初不會很快，對早期預警的速度不夠快，但它實現了提供警報的技術，隨着我們不斷改善MyShake的實時檢測系統，我們會努力使它們變得越來越快。”