seismograph

Seismograms are the records (paper copy) produced by seismographs used to calculate the location and magnitude of an earthquake.

Portable seismographs like this one are used for more detailed research.

Seismographs are also used to record ground movement with seismic sensors in place around the volcano.

However, the earliest long-period seismographs recorded dispersive waves with large transverse displacement components in the main tremor.

Magnitude measures the energy released at the source of the earthquake. Magnitude is determined from measurements on seismographs.

It is the radiated energy that shakes buildings and is recorded by seismographs .

Early-warning systems consist of seismographs that detect the P-waves and send out electronic alerts.

Significantly, the live seismographs were calm, showing lack of stress.

LISS showed a global quake at this time, registering on all seismographs worldwide.

Two of the instruments presently in use to achieve this goal are seismographs and tiltmeters.

Japan has the world's most advanced earthquake early-warning system, with more than 1, 000 seismographs scattered over the country.

Explosions are registered by seismographs and they define the structure of Earth crust.

An introduction of the normalized calibration method for seismographs in Xichang Telemetric Seismic Network

Two problems of analysis to earthquakes recorded by Wenzhou seismic station's digital and analogous seismographs

Application of Records of Strong-Motion-Seismographs in Maintenance of the Yang-Pu Bridge

The characteristics of the core phases on the records of digital seismographs