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The basic principle is to create a regional network of GPS stations. Then, a geophysicist can track the position of the station in a particular geographic area. In the event of an earthquake, scientists can examine the movement of GPS stations and find out how much shear or fault resulting from the earthquake.
Brenda Crowell and colleagues at the Scripps Institute of Oceanography in California University to develop this approach into the GPS system for modeling the earthquake in detail. The system is based on mathematical models that allow researchers to use GPS to characterize the regional data of geological activity specific zones during the earthquake took place.
The researchers claim their system can ensure that large earthquakes more rapidly and accurately than traditional seismic methods. "It could help as a response tool to find areas that suffered the greatest damage more accurately. For tsunami modeling, this method will work perfectly," said Brenda Crowell
Traditional system is still restricted to the placement of seismic stations near the site of an earthquake. Yet to determine the size and extent of earthquakes, seismologists need to look at data from the various stations are located far apart. Moreover, because the instruments at seismic stations were unable to measure a variety of plate teknotik and earthquake magnitude is underestimated in the first minutes after the earthquake.
Meanwhile, when an earthquake struck the Tohoku region, geophysicists have more than 20 minutes to calculate earthquakes with a magnitude of 9.0 on the Richter scale. If local governments have known about the earlier earthquake, it will be sufficient time to enable early warning system.
Researchers Develop GPS-Based Earthquake Measuring System
Californian researchers have developed a system that can find out how strong the earthquake vibration and provide information about its effect on the fault zone. Not only that, the system can also detect when a tsunami.
Launched Physicsworld, they used a system based on Global Positioning System (GPS). Alternative approaches have been developed over the past two decades by using GPS data is enabled to monitor the earth's crust from space.
The basic principle is to create a regional network of GPS stations. Then, a geophysicist can track the position of the station in a particular geographic area. In the event of an earthquake, scientists can examine the movement of GPS stations and find out how much shear or fault resulting from the earthquake.
Brenda Crowell and colleagues at the Scripps Institute of Oceanography in California University to develop this approach into the GPS system for modeling the earthquake in detail. The system is based on mathematical models that allow researchers to use GPS to characterize the regional data of geological activity specific zones during the earthquake took place.
The researchers claim their system can ensure that large earthquakes more rapidly and accurately than traditional seismic methods. "It could help as a response tool to find areas that suffered the greatest damage more accurately. For tsunami modeling, this method will work perfectly," said Brenda Crowell
Traditional system is still restricted to the placement of seismic stations near the site of an earthquake. Yet to determine the size and extent of earthquakes, seismologists need to look at data from the various stations are located far apart. Moreover, because the instruments at seismic stations were unable to measure a variety of plate teknotik and earthquake magnitude is underestimated in the first minutes after the earthquake.
Meanwhile, when an earthquake struck the Tohoku region, geophysicists have more than 20 minutes to calculate earthquakes with a magnitude of 9.0 on the Richter scale. If local governments have known about the earlier earthquake, it will be sufficient time to enable early warning system.
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