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Redefining how we feel the world

Redefining how we feel the world

Ever wonder how big a magnitude 5 earthquake really was, or ponder over how much energy a magnitude 3 quake released? Well I am not saying I have the answers but I did construct this table relating joules released by varying magnitude earthquakes to more ‘tangible’ things. […]

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NPR asks some pretty provocative questions about earthquakes

NPR asks some pretty provocative questions about earthquakes

Bravo NPR! The press might have a long history of offering the public some pretty screwy analyses of recent earthquake activity, blowing things out of proportion and generally misunderstanding the fundamentals but today’s “Morning Edition of NPR: Can A Big Earthquake Trigger Another One?” knocks the ball […]

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Short Period Sensors Improve SeisComP Performance (LARGE N!!!!)

Short Period Sensors Improve SeisComP Performance (LARGE N!!!!)

Yesterday was an epic day for automated event detection throughout Central America. Over the years, Angel and I have installed SeisComP’s at nearly every geophysical institute from Southern Mexico to the Colombian border. We spend a lot of time with clients tuning their SeisComPs to ensure that […]

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Guatemala shares broadband data with IRIS

Guatemala shares broadband data with IRIS

Estimados: Buenos días. Durante esta semana OSOP trabajó conjúntamente con INSIVUMEH para compartir los datos al dominio público de las cinco (5) estaciones de banda ancha de la Red Sísmica Guatemala hacia IRIS-DMC. Los sensores de movimiento fuerte y débil ahora se encuentran disponibles para obtener su […]

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The Ultimate Building Inspection

The Ultimate Building Inspection

Why wait for an earthquake to test building guidelines, construction techniques and retrofit technology when you can simulate earthquakes on an enormous shake table so MASSIVE NASA could launch a space ship from it? Don’t be fooled, this is no launch pad: You are looking at the […]

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GPS versus NTP timing- splitting hairs?

GPS versus NTP timing- splitting hairs?

If not, can someone help me better understand how accurate digitizer sampling has to be? I have been working on making a seismometer that meets a bunch of specs and one of the specs is that the timing accuracy of the instrument was to be sub millisecond. […]

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Meta-Data QC – Response Files Part 2

Meta-Data QC - Response Files Part 2

In my last QC-related post, I looked at response files and the particular problem of supplying an incorrect gain.  But as we know, it’s not just the gain that can be wrong in a response file, other culprits abound. In this post, I’ll look at two other […]

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