Encyclopedia > Seismograph

Article Content

Seismograph

Seismographs are used by seismologists to record seismic waves. By studying seismic waves, geologists can map out the interior of the Earth.

When an earthquake occurs, seismographs near the epicenter are able to record both S and P waves, but those on the other side of the Earth can only record P waves.

All Wikipedia text is available under the terms of the GNU Free Documentation License

Search Encyclopedia

Search over one million articles, find something about almost anything!

Featured Article

... beer brewing company of New Zealand. This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you ...