The unit is a horizontal beam seismograph that is designed to continuously record vertical changes in ground movement. The seismogram below is refreshed once every five minutes. The seismogram above ...

This seismogram shows a 24-hour record of how much the ground moves at Weston Observatory in Weston, Massachusetts. Viewing other seismic stations will show you how much the ground moves in those ...

This record made by the seismograph is called 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.

The abrupt motion of the rock causes its seismic signal to appear abruptly on a seismogram. Even though the way they are produced is different, seismograms produced by volcano-tectonic earthquakes ...

The Volcanological Survey of Indonesia (PVMBG) reported the activity of Mount Marapi in West Sumatra has been increasing ...

You may choose to show a close-up of a record (seismogram) for a single earthquake event, and ask your students to point out different seismic waves. In addition, shear waves cause much more ...

Officers have begun preparing several refugee camps for at least 10,295 victims affected by the eruption of Mount Lewotobi ...

The Frans Xavier Seda Airport in Maumere, East Nusa Tenggara (NTT), is temporarily closed due to the Mount Lewotobi Laki-laki ...

Mount Marapi in West Sumatra erupted again on Saturday, . The ash column reached 1,000 meters above the summit.