How Google’s Earthquake Alerts Protected Millions — And How to Turn It On in Quake-Prone Countries When two massive earthquakes (7.2 and 7.5) struck Venezuela recently, the country had no national early warning system. But millions of Android phones lit up with loud alerts seconds to minutes before the shaking hit — giving people precious time to drop, cover, and hold on. Google’s clever system turns the accelerometers in over 2 billion Android phones into a giant crowdsourced seismic network. It detects the first waves, confirms the quake, and blasts notifications to users in the affected area. In Venezuela, it reached 11.4 million people — proving technology can save lives even where governments can’t. How to activate it (works in nearly 100 countries): Open Settings on your Android phone. Tap Safety & Emergency (or search for “Earthquake alerts”). Select Earthquake Alerts and toggle it ON. Keep Location services ena...
Description
- Six-axis ready-to-fly folding hexacopter frame kit
- Folding structure, easy to install and disassemble
- 2.4Ghz radio controlled professional photography
- BTU module & 915mHz date-link
- Supports andropilot ground station
- Comes with an APM compatible flight controller
The 650mm RTF Folding Hexacopter UAV is a six-axis folding hexacopter frame kit with motor, ESC and propellers. It is a professional photography hexacopter providing very heavy payload and light weight. It can hang cameras like 5D2, Nex5-7, Panasonic GH2-3 and compatible with DJI Z15 gimbal, Foxtech camera mount. All comes with carbon fiber tubes and propellers for the easy foldable landing gear.Features- Altitude hold
- GPS hold and GPS RTL system
- Lower voltage warning & RTL features
- BTU module & 915mHz date-link (adjustable parameters)
- Intelligent orientation control
- Failsafe return to home
- Foldable arm
- what's included
- 650mm Hexacopter Frame x1
- 4015 Motor x6
- 40A Hobbywing ESC x6
- 1505-inch Propeller x 6
- Flight Controller x1
- Radios x1
- LiPo Battery x1
- specification
- Diagonal wheelbase: 650mm
- Material: Carbon fiber, aluminum alloy
- Total weight: 1.380kg
- Take off weight: 1.25kg ~ 3.0kg
- Load weight: 0.0kg ~ 1.8kg
- Power battery: LiPo (4S, 5200mAh~15000mAh, 15~50C)
- Hover time (maximum): 15 minutes (@5200mAh &2.5kg takeoff weight)
- Motor stator size: 28 x 10m
- KV: 750rpm/V
- Power (maximum): 390W
- Weight: 70g
Flight Parameters

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