A Moment Magnitude Scale
It is well known that the most widely used earthquake magnitude scales, ML (local magnitude), M, (surface wave magnitude), and mb (body wave magnitude), are, in principle, unbounded from above. It is equally well known that, in fact, they are so bounded, and the reasons for this are understood in terms of the operation of finite bandwidth instrumentation on the magnitude-dependent frequency characteristics of the elastic radiation excited by earthquake sources.
Hanks, T.C. and Kanamori, H. 1979, A moment magnitude scale: Journal of Geophysical Research, v. 84, p. 2348-2350.
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EIS Status Update - Mar 2019
As of March 15, a Draft EIS update is now available under the ‘Public Involvement’ tab. To view the update, click here.
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EIS Status - Feb 2019
- Proponent submits revised Plan of Operations [Sep 2014]
- Federal Register Notice of Intent to prepare EIS [Mar 2016]
- Public scoping period and scoping meetings
[5 meetings between Mar-Jun 2016; comment period extended from 60 days to 120 days, closed Jul 18, 2016 ] - Compile and review existing data
- Prepare project description and identify project alternatives
- Publish Alternatives Evaluation Report [Sep 2017]
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We Are HereValidate Baseline Information; analyze environmental effects
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Prepare Draft EIS
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- 90-day public review and comment period, with public meetings
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- Resolve objections to Final EIS and draft ROD
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