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How Do I Read a Seismogram? When you look at a seismogram, there will be wiggly lines all across it. These are all the seismic waves that the seismograph has recorded. Most of these waves were so small that nobody felt them. These tiny microseisms can be caused by heavy traffic near the seismograph, waves hitting a beach, the wind, and any ...


Seismograms: Illustrated Guide to Reading a Seismogram (USGS) Ever wondered how to read the data on a seismogram? This playful animation created for the general public by the USGS describes what a seismogram is, how they are recorded and what to look for in the seismic traces recorded on a seismometer.


How Do You Read a Seismograph? Home Science Earth Science Earthquakes. How Do You Read a Seismograph? A seismogram is interpreted when geologists look at squiggly lines made by a seismograph on a piece of paper, according to Michigan Technological University. Initial waves, called P waves, are small and close together because they travel quickly.


These seismogram displays depict ground motion recorded by seismograph stations in real-time, updated every few minutes. Each plot represents 24 hours of data from one station. Read more » 70 stations on this map ...


The seismograms show a record of how the ground moved at a particular seismograph station during a 24-hour period. The seismogram is “read” like a book, from left to right and top to bottom (this is the direction that time increases). As with a book, the right end of any horizontal line “connects” with the left end of the line below it.


This video provides a tutorial for anyone interested in interpreting the seismic records on public webicorder displays. look at the real data, which is far more informative. Here is a small earthquake. It begins as a sharp crack as the rock breaks, and then quickly decays with time. In this plot ...


Beginner’s guide to reading seismograms ... jAmaSeis is a seismology teaching aid developed by IRIS’s Seismographs in Schools program. It is widely used by science educators worldwide. For full details on using jamaseis see here: jAmaSeis Installation Guide.


considerable training to be able to read seimograms. Figure 1— A seismograph has 3 sensors that record N–S, E–W, and vertical motion on 3 seismograms. The different behavior of P, S, and surface waves explain how a single seismograph station can have 3 different seismograms: 1) The vertical component shows the compressive P wave bumping up


VIBRATION MONITORING with BLASTING SEISMOGRAPHS Ken Eltschlager, Mining/Explosives Engineer keltschlager@osmre.gov or (412) 937-2169 . ATF FY 2007 – Certified Explosives specialist \⠀䌀䔀匀尩 retraining– Two hours\爀倀甀爀瀀漀猀攀㨀 吀漀 搀攀猀挀爀椀戀攀 琀栀攀 愀搀瘀攀爀猀攀 攀昀昀攀挀琀猀 漀昀 攀砀瀀氀漀猀楜ഀ瘀攀猀 ...