Table of Contents
Is the seismograph still used today?
Seismographs are instruments used to measure seismic waves produced by earthquakes. Scientists use these measurements to learn more about earthquakes. While the first seismograph was made in ancient China, today’s modern instruments are based on a simple design first created in the 1700s.
How has the seismograph changed over time?
The Seismograph has changed a lot over time because scientists kept improving it and perfecting. The ancient only recorded the direction that the earthquake occurred, but the modern Seismograph records where, when and how big the earthquake is with a Rictor Scale.
When was the last earthquake in Scotland?
Magnitudes are local magnitude (ML) and are calculated to one decimal place, as is standard practice in earthquake seismology….Last updated: Thu, 30 Sep 2021 22:40:01 (UTC)
| Date | 2021/09/17 |
|---|---|
| Time (UTC) | 15:31:36.4 |
| Lat | 56.237 |
| Lon | -4.952 |
| Region | CAIRNDOW,ARGYLL & BUTE |
How do modern seismographs work?
Seismographs are instruments used to record the motion of the ground during an earthquake. A seismograph is securely mounted onto the surface of the earth so that when the earth shakes, the entire unit shakes with it EXCEPT for the mass on the spring, which has inertia and remains in the same place.
Has Scotland ever had a tsunami?
The east coast of Scotland was struck by a 21 m (70 ft) high tsunami around 6100 BC, during the Mesolithic period. The wave was caused by the massive underwater Storegga slide off Norway.
Where do P waves travel?
In a P wave, the rock particles are alternately squished together and pulled apart (called compressions and dilatations), so P waves are also called compressional waves. These waves can travel through solids, liquids, and gases. P waves can travel through the liquid outer core.
https://www.youtube.com/watch?v=Hpqz62SrDuw