Tag: earthquakes
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PBS Terra: The Cascadia Megaquake Is Inevitable. And It Will Reshape America Forever
PBS Terra has an interesting new video. This one covers the history, science, and future of the Cascadia Subduction Zone in the Pacific Northwest.
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Here’s How Earthquakes Are Measured
The New York Times has an interesting article that explains the moment magnitude scale used to calibrate the strength of an earthquake. The logarithmic was proposed by Thomas C. Hanks and Hiroo Kanamori in 1979. The method measures an earthquake’s magnitude based on its seismic moment. It replaced the older Richter scale because it saturates…
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Scientists find evidence for biggest earthquake in human history
Live Science has a story about a very large earthquake 3,800 years ago. It happened in northern Chile and probably measured about 9.5 on the moment magnitude scale. Previously, the largest earthquake was the 1960 Valdivia earthquake in southern Chile. That one had an average slip of 11 m across the Nasca faults, with 25…
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Reminder: ESCONI General Meeting on January 11th, 2019
The speaker at our January ESCONI general meeting will be Dr. Philip Carpenter from NIU. The topic of his talk is Northern Illinois earthquakes, and the recent induced seismicity in Oklahoma and Kansas.
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ESCONI General Meeting on January 11th, 2019
The speaker at our January ESCONI general meeting will be Dr. Philip Carpenter from NIU. The topic of his talk is Northern Illinois earthquakes, and the recent induced seismicity in Oklahoma and Kansas.
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Listening to Rocks
Via Science Daily: …Earth is not a quiet planet. The key is knowing how to listen to the ever-present ambient noise. University of Illinois seismologist Xiaodong Song and graduate student Zhen J. Xu have become good listeners, especially to the sounds beneath our feet. Using a technique called “ambient noise correlation,” Xu and Song have…
