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Nov 26, 2013 · In this activity, students use an online simulation—Virtual Earthquake—that is accessible through the Earthquakes Living Lab interface, to locate the epicenter of an earthquake by making simple measurement on three seismograms, recordings of an earthquake's seismic waves detected by instruments (seismographs) far away from the earthquake.
Search Earthquake Catalog Time Zone. Display event dates and times using this time zone.
S Waves, known as Secondary Waves, are seismic waves that simply go about in an S shape, form, and is the second wave to arrive during an earthquake. S waves cannot travel through liquids, they can travel through solids. P waves, known as Primary waves, are also part of a seismic wave.
- 9 min
- Sal Khan
- An earthquake in Chile had a magnitude of 9.5 in 1960. It is the strongest that was recorded, likely not the strongest ever. Since the scale and eq...
- No, if Sal would have hit in the middle, the waves would go upward AND downward.
- You are correct P-waves stand for *primary waves*. Similarly S-waves stand for *secondary waves*.
- WHere did you get the idea that transverse waves could only travel through solids? There is an electromagnetic field throughout all of space and el...
- The largest tsunami that we've measured took place in Alaska in 1958. A 7.8 magnitude earthquake in a fjord called Lituya Bay caused lots of rock t...
(slide 10) S-waves (or secondary waves) are another type of body wave, and as the name suggests, are the second fastest type of seismic wave, meaning an S-wave would be the second wave you would feel after an earthquake occurs. In fact, S-waves travel at 60% of the speed of P-waves.
Seismic waves are vibrations in the earth that transmit energy and occur during seismic activity such as earthquakes, volcanic eruptions, and even man-made explosions. There are two types of seismic waves, primary waves and secondary waves.
S-waves, also known as secondary waves, shear waves or shaking waves, are transverse waves that travel slower than P-waves. In this case, particle motion is perpendicular to the direction of wave propagation.
People also ask
What is a secondary wave & a Primary Wave?
What are seismic waves?
How are seismic waves used to locate an earthquake?
What can a seismologist learn from different types of seismic waves?
We issue bulletins of earthquake activity and maintain an archive of seismological information and records. We use the data we collect to investigate the nature and distribution of earthquake activity and their driving forces, to improve understanding of earthquake hazard.
