Is seismograph and seismometer the same?
Is seismograph and seismometer the same?
A seismometer is the internal part of the seismograph, which may be a pendulum or a mass mounted on a spring; however, it is often used synonymously with “seismograph”. Seismographs are instruments used to record the motion of the ground during an earthquake.
What is the difference between seismograph and Accelerograph?
As nouns the difference between accelerograph and seismograph. is that accelerograph is (military) an apparatus for studying the combustion of powder in guns, etc while seismograph is an instrument that automatically detects and records the intensity, direction and duration of earthquakes and similar events.
How do seismometers and seismographs work?
An instrument sensitive to tiny movements in the ground. A seismometer is a device that is sensitive to vibrations. It works on the principle of a pendulum: a heavy, inert mass with a certain resistance to movement (i.e. inertia) due to its weight is suspended from a frame by a spring that allows movement.
Is the difference between seismograph and Richter Scale?
A seismograph is an instrument used to detect and record earthquakes. The Richter scale is a numerical value used to measure the power or magnitude of earthquakes.
What’s the difference between seismogram and seismograph?
The terms seismograph and seismometer are often used interchangeably; however, whereas both devices may detect and measure seismic waves, only a seismograph possesses the capacity to record the phenomena. A record produced by a seismograph on a display screen or paper printout is called a seismogram.
What’s the difference between seismograph and Seismoscope?
As nouns the difference between seismograph and seismoscope is that seismograph is an instrument that automatically detects and records the intensity, direction and duration of earthquakes and similar events while seismoscope is an instrument that indicates the occurrence of an earthquake.
What is the difference between a seismometer and an accelerometer?
A seismograph is a generic term used to describe a recording device that detects ground motion due to earthquake. Accelerometers are much less sensitive than seismometers, but have a much greater range, detecting ±2g or more of ground acceleration (things start flying off the ground at 1g, when gravity is overcome).
What is seismic Accelerograph?
An accelerograph can be referred to as a strong-motion instrument or seismograph, or simply an earthquake accelerometer. Accelerographs record the acceleration of the ground with respect to time. This recording is often called an accelerograms, strong-motion record or acceleration time-history.
How are seismometers used?
A seismograph, or seismometer, is an instrument used to detect and record earthquakes. Generally, it consists of a mass attached to a fixed base. During an earthquake, the base moves and the mass does not. The motion of the base with respect to the mass is commonly transformed into an electrical voltage.
What is the difference between epicenter and focus hypocenter?
The hypocenter is the point within the earth where an earthquake rupture starts. The epicenter is the point directly above it at the surface of the Earth. Also commonly termed the focus.
What is the difference of epicenter and focus?
The focus is the place inside Earth’s crust where an earthquake originates. The point on the Earth’s surface directly above the focus is the epicenter. When energy is released at the focus, seismic waves travel outward from that point in all directions. It’s these waves that you feel during an earthquake.
What is the difference between a seismograph and a seismometer?
Natural Hazards. A seismometer is the internal part of the seismograph, which may be a pendulum or a mass mounted on a spring; however, it is often used synonymously with “seismograph”. Seismographs are instruments used to record the motion of the ground during an earthquake.
Technically speaking, a seismometer measures offset or motion, while an accelerometer measures proper acceleration. Seismometer outputs (seismographs) are generally in terms of displacement (meters) vs time, while accelerometer graphs will be in terms of acceleration (g-force or metres per second per second (m/s2)) vs time.
What is the instrument used to detect earthquakes called?
An instrument that automatically detects and records the intensity, direction and duration of earthquakes and similar events. (geology) A device used by seismologists to detect and measure seismic waves and therefore locate earthquakes etc; a seismograph.
What is the horizontal axis on a seismogram?
On a seismogram, the HORIZONTAL axis = time (measured in seconds) and the VERTICAL axis= ground displacement (usually measured in millimeters). When there is NO EARTHQUAKE reading, there is just a straight line except for small wiggles caused by local disturbance or “noise” and the time markers.
