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You are browsing the archive for early warning Archives - AGU Blogosphere.

4 October 2021

The seismic signals of the Chamoli landslide and debris flow

An interesting paper has just been published in the journal Science, (Cook et al. 2021), which looks at the seismic signals generated by the Chamoli rockslide and debris flow. It concludes that the event was fully detectable by seismic instruments located at up to 100 km from the event.

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13 July 2018

Rohingya refugee camps: your help needed

The 1 million displaced Rohingya people, now living in refugee camps in Bangladesh having fled from Myanmar, are facing extreme levels of landslide hazard as the monsoon develops. We need your help to try design an effective early warning system.

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28 July 2016

Illgraben debris flow video

A fantastic video has been posted on Youtube showing a very large debris flow in the Illgraben catchment in Canton Vallais, Switzerland.

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31 March 2012

Mexico City Earthquake Early Warning–it works!

Want to see what happens when you can know an earthquake is coming? Mexico has footage that’s got you covered. Update 6 April 2012: They also have an app that alerts you to earthquakes before they hit… in Mexico City. (También tiene una App que se alerta de sismos antes de tiembla!) On March 20, 2012 a very large earthquake rocked southern Mexico. With a magnitude of 7.4 and a …

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22 April 2011

Earthquake early warning in action

No country would have been better prepared for such a massive earthquake than Japan. Straddling the boundaries between four converging tectonic plates, Japan is one of the most earthquake prone nations in the world, and is probably the most earthquake savvy. They have world-class networks of monitoring instruments including seismometers, tide gauges, and GPS locating stations; they routinely practice for massive quakes, which they are often visited by; and they …

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13 March 2011

More unique perspectives of the 8.9 quake

As expected, videos continue to surface from people all over Japan documenting the shaking, rattling, and swaying of everything. Below I have collected some of the more interesting sights. I recommend visiting Highly Allocthonous where Chris Rowan has summarized the which, what, where, and how of this massive quake. He’s also put together some nice little diagrams illustrating the more technical concepts. The whole country of Japan shook for a …

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