GPS solution provides three-minute tsunami alerts

Researchers have shown that, by using global positioning systems (GPS) to measure ground deformation caused by a large underwater earthquake, they can provide accurate warning of the resulting tsunami in just a few minutes after the earthquake onset. For the devastating Japan 2011 event the analysis of the GPS data and issue of a detailed tsunami alert would have taken no more than three minutes.
Source: http://www.sciencedaily.com/releases/2013/05/130517085819.htm

How should geophysics contribute to disaster planning?

Earthquakes, tsunamis, and other natural disasters often showcase the worst in human suffering – especially when those disasters strike populations who live in rapidly growing communities in the developing world with poorly enforced or non-existent building codes. Scientists now illustrate how nearly identical natural disasters can play out very differently depending on where they strike.
Source: http://www.sciencedaily.com/releases/2013/05/130516182002.htm

Research helps paint finer picture of massive 1700 earthquake

In 1700, a massive earthquake struck the west coast of North America, but a lack of local documentation has made studying this historic event challenging. Now, researchers have helped unlock this geological mystery using a fossil-based technique. Their work provides a finer-grained portrait of this earthquake and the changes in coastal land level it produced, enabling modelers to better prepare for future events.
Source: http://www.sciencedaily.com/releases/2013/05/130514190635.htm

Hearing the Russian meteor, in America: Sound arrived in 10 hours, lasted 10 more

How powerful was February’s meteor that crashed into Russia? Strong enough that its explosive entry into our atmosphere was detected almost 6,000 miles away in Lilburn, Ga., by infrasound sensors — a full 10 hours after the meteor’s explosion. A researcher has modified the signals and made them audible, allowing audiences to “hear” what the meteor’s waves sounded like as they moved around the globe on February 15.
Source: http://www.sciencedaily.com/releases/2013/05/130503105033.htm

No Redoubt: Volcanic eruption forecasting improved

Forecasting volcanic eruptions with success is heavily dependent on recognizing well-established patterns of pre-eruption unrest in the monitoring data. But in order to develop better monitoring procedures, it is also crucial to understand volcanic eruptions that deviate from these patterns. New research retrospectively documented and analyzed the period immediately preceding the 2009 eruption of the Redoubt volcano in Alaska, which was characterized by an abnormally long period of pre-eruption seismic activity that’s normally associated with short-term warnings of eruption.
Source: http://www.sciencedaily.com/releases/2013/04/130429133705.htm

Earth’s center is 1,000 degrees hotter than previously thought, synchrotron X-ray experiment shows

The temperature near Earth’s center is 6,000 degrees Celsius, 1,000 degrees more than given in an experiment 20 years ago. This experiment with synchrotron X-rays confirms geophysical models that explain Earth’s magnetic field and the creation and intense activity of hot-spot volcanoes. The scientists also established why the earlier experiment had produced lower temperature figures.
Source: http://www.sciencedaily.com/releases/2013/04/130425142355.htm

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