Search results
Results from the WOW.Com Content Network
An upgrade to California's earthquake early-warning system using GPS data will allow more timely alerts about shaking and better estimate the magnitude of a megaquake.
For U.S. earthquake scientists, Japan's 'megaquake' warning renewed worries about when and how to warn the public if they find clues that the 'big one' might be coming for the West COast.
A major earthquake measuring 7.4 hit Taiwan early Wednesday, killing 9 and injuring at least 1,000. A 7.4 earthquake is exponentially more destructive than the 4.8 quake that struck central New ...
The “megaquake advisory,” which is filled with scientific jargon, has worried and baffled people across the country. Some towns closed beaches and canceled annual events, which has led to challenges for travelers during Japan’s Obon holiday week, a time for festivals and fireworks across the nation.
An animation detailing how earthquake warning systems work: When P waves are detected, the readings are analyzed immediately, and, if needed, the warning information is distributed to advanced users and cell phones, radio, television, sirens, and PA systems/fire alarm systems before the arrival of S waves.
The United States Geological Survey reported a magnitude (M ww ) of 7.1, at a depth of 25 km (16 mi) and a maximum Modified Mercalli intensity of VIII (Severe). [2] At least 24 aftershocks were recorded following the event, [8] with the strongest measuring M w 5.5.
Japan issued a “megaquake advisory” following a 7.1-magnitude earthquake off its coast. That raised the risk of a larger quake on the Nankai Trough, an underwater subduction zone.
Alert signal in France End of alert signal in France. In France, the population warning is made via air raid siren. This network is called the "Réseau national d'alerte" (RNA). The system is inherited from the air-raid siren network (défense passive) developed before World War II. It consists of about 4,500 electronic or electromechanical ...