Скачать или смотреть M6.3 Namie, Japan 8/4/19 - RaspberryShake 4D Seismograph (RD29A) - Chino Hills, CA

Recording of the live stream from a RaspberryShake 4D seismograph

Note: Added a variable scale graph to help show the details of the smaller quakes and still capture larger quakes as well

https://earthquake.usgs.gov/earthquak...


The RaspberryShake is located in a homemade seismic vault in a backyard approx 2 ft below ground. Click on the image on this page to see photos of the vault: http://bit.ly/2JzfrgO

==Diplay Info==
The lower graph will show smaller motion. Either smaller local quakes or larger more distant earthquakes. The graph is set to a fixed scale. The larger the motion detected, the more the graph will be filled.

The graph above the lower graph is a variable scale graph. The graph's scale will shrink and grow as the signal level changes.

The color graph is a Spectrogram. This is a different way to view the same seismic data. See the info links for information on how to interpret this graph.

All three of these graphs show the last 2 minutes of data

The upper left displays the RaspberryShake station network in Southern California. https://raspberryshake.net/stationview/

The upper right graph displays data for the last 4 hours.

RaspberryShake data is displayed using WinSDR (http://psn.quake.net/shake/winsdrshak...) Data is filtered at .3 - 7.0 Hz to reduce local cultural noise.
The spectrogram is displayed using the USGS's Swarm application: https://volcanoes.usgs.gov/software/s...

An alert tone will sound if a possible earthquake has been detected. The tone will change pitch and sound longer the stronger the motion that is detected.

==Contact Info==
Twitter:   / stevebcaron   @SteveBCaron
Email: [email protected] for questions or feedback.

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Live Stream permanent link: https://www.youtube.com/embed/live_st...

==Info Links==
RaspberryShake: https://raspberryshake.org/
How to read a seismogram: https://www.iris.edu/hq/inclass/uploa...
What is a spectrogram: https://pnsn.org/spectrograms/what-is...
Pacific Northwest Seismic network. (Earthquake and volcanic activity in the Pacific Northwest): http://pnsn.org

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