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Message Subject
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Best El Hierro Thread On GLP - Canary Islands - ACTIVITY HAS RETURNED - AGAIN!
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Anonymous Coward |
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Tardits point 4. You are right that pressure is main point. And there is huge amount magma inside el hierro and it is now getting that pressure. It can be there anything between one hour -million year.
About those seismic waves go and visit new zeland geonet site. there is good and simple example how to read that kind of data.
Quoting: so-gui-li I checked the website. Appreciate your input. I could find descriptions of what the events look like on the recorder, but not descriptions of what was causing the different types of waves, beyond them saying they were volcanic. Still looking for a thorough distinction between 'long duration' ('type b') seismic waves and 'harmonic tremors' if anyone can help me with this. Is a harmonic tremor just a protracted 'type b' wave? Are they both a result of resonance within the magma's gases or do they have different causes? I found it! Woohoo! [ link to www.globalchange.umich.edu]
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