Outrageously Funny Word Dictionary :: Seismograms

👉 A seismogram, also known as an earthquake wave or seismic trace, is a graphical representation of the seismic waves that are observed during an earthquake. Seismic waves are disturbances caused by earthquakes and can be measured in different ways depending on the type of seismic instrument used. Seismic waves can be classified into three types: surface waves,海底地震波,以及深层地震波。Surface waves are the most common type of seismic wave and they travel through the Earth's crust at a speed of about

seismograms