The seismograph at CHIE showed almost a flat line today.
Before this, John Milner had already invented Seismograph in 1880!
Deep sea Seismographs have recorded explotions on the ocean floor.
Thus, magnitude can be computed from the record of any calibrated seismograph.
The magnitude of an earthquake is determined using information gathered by a seismograph.
The earthquake was felt as far as La Palma(see seismograph of La Palma below).
Seismographs are very sensitive instruments and cars,
people or other human activities can influence the recordings.
These tremors, called micro-earthquakes, aren't generally felt by people and
are usually recorded only on local Seismographs.
Seismographs have a hanging,
weighted writing instrument suspended from a base that is attached to the ground.
A seismograph is a device that measures
and records the motion of the ground during an earthquake.
Currently the main areas of use are isolated dwellings but also for scientific devices such as Seismographs.
To make sure they're not missing something, researchers have been using ships to drop off and
later retrieve ocean bottom Seismographs.
The timestamp shown at the top right of the seismograph drum shown below is the time when
this image was last refreshed.
Lunar astronauts used Seismographs on their visits to the Moon,
and found that small moonquakes occurred several kilometers beneath the surface, causing ruptures and cracks.
Lunar astronauts used Seismographs on their visits to the Moon
and found that small moonquakes occurred several kilometers beneath the surface, causing ruptures and cracks.
Lunar astronauts used Seismographs on their visits to the Moon,
and found that small moonquakes occurred several kilometres beneath the surface, causing ruptures and cracks.
Lunar astronauts used Seismographs on their visits to the Moon,
and found that small moon quakes occurred several kilometres beneath the surface, causing ruptures and cracks.
Events with magnitudes of about 4.5 or greater--there are several thousand such shocks
annually--are strong enough to be recorded by sensitive Seismographs all over the world.
Lunar space travelers utilized Seismographs on their visits to the Moon,
and found that little moonquakes happened a few kilometers underneath the surface, causing bursts and breaks.
Making up his reports was a time consuming daily
task, not only describing what he thought you to know as important, but also collecting the many images from the Seismographs, webcam screenshots etc.
In 132 AD, a Chinese inventor built a seismograph which, at the moment of an earthquake,
expelled a copper ball out of the mouth of a dragon and into the mouth of a frog.