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- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
For the study, researchers examined GPS data collected before and after past earthquake events around the world.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
The data was collected on 90 earthquakes measuring larger than 7 on the Richter scale. The study period covered the past 20 years.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
The team identified a pattern of fault movements as they examined the data collected from different areas.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
The movement signals were recorded within two hours of an earthquake striking.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
The researchers said the study demonstrates that faults generally begin to move about two hours before a large earthquake.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
Scientists had identified such signals before single earthquakes in the past.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
But until now, researchers were not able to link those signals to all seismic events.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
While the data identified this pattern, the scientists said the instruments that could capture GPS data in real time do not currently exist.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
The National Research Institute for Sustainable Development issued a statement on the development.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
It said that in order to make predictions, researchers “would need to measure signals at least 10 times smaller than what we can presently do.”
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
Another way to possibly build a better earthquake prediction system would be to develop “dense measurement networks” that sit very close to faults.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
However, such an effort would require major technological progress, the institute said.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
Quentin Bletery is a geophysicist at Côte d’Azur University in the city of Nice.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
Bletery worked together on the study with Jean-Mathieu Nocquet, another researcher at the university.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
Bletery told Science that the study found that no observable movement was identified in the first 46 hours leading up to an earthquake.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
But starting around two hours before an earthquake, the GPS signals recording movement started to increase.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
To confirm its findings, the team compared that data to more than 100,000 random time periods recorded when no earthquakes were reported.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
“This tells us earthquakes are predictable in nature,” Bletery told Science
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
The scientists note that more research is needed to support their findings.
- Public domaingeneral-american
GPS Data Could Predict Earthquakes Hours Ahead
Much of the information used in the latest study, for example, depended heavily on data from GPS stations near major earthquake sites. I’m Bryan Lynn.
- Public domaingeneral-american
Grammar Games at Home: Jeopardy
Hi, everyone! You might be reading or listening to this Everyday Grammar program from your living room or bedroom.
- Public domaingeneral-american
Grammar Games at Home: Jeopardy
In fact, you might be even wearing pajamas no matter the time of day. If you are like us here in Washington, D.C.
- Public domaingeneral-american
Grammar Games at Home: Jeopardy
and many other places, health officials have asked you to stay at home for now.
- Public domaingeneral-american
Grammar Games at Home: Jeopardy
And with so many people at home for long periods, people are looking for activities to keep their minds occupied. Too much time on social media can be a problem.
- Public domaingeneral-american
Grammar Games at Home: Jeopardy
Even binge-watching movies and television shows loses its appeal after a while.
Source badges: Public domain · Creator video · Digital presenter · Reference recording. Literary passages are public domain. Studio notes are not spoken in the audio.