How to tell difference between earthquake and volcano on seismograph?
Mar 10, 2010
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Earthquake Questions
helpp .
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3 comments
A.Ganapathy India on March 10, 2010 at 9:00 pm
For earthquake the amplitude will reach the highest point in a short period.You can see the primary wave and secondary wave and other surface waves separately.But for Volcano you will find the ground shaking without fallowing any proper pattern.
futbolfanatic42 on March 10, 2010 at 9:00 pm
Seismographs do not measure volcanos, they only measure earthquakes. Hope it helps
Pro-puppy-cuddler on March 10, 2010 at 9:00 pm
From what I remember reading, earthquakes and volcanic activity are like cousins. Underneath the sliding plates is lava. Volcanos are just an outlet for some of that lava squeesed up by all that pressure. Seismographs measure the earth shaking as far as I know, and since voncanic activity causes some shaking…it makes sense for seimographs to pick it up.
Anyways if you look at the US Geological Survey website, earthquakes near volcanic activity seem to be shallower, more frequent, and less intense than your average earthquake. All earthquakes are caused by plate slippage. Hope that helps!