How seismologist determine the distance to the epicenter of an earthquake?
How seismologist determine the distance to the epicenter of an earthquake?
The distance between the beginning of the first P wave and the first S wave tells you how many seconds the waves are apart. This number will be used to tell you how far your seismograph is from the epicenter of the earthquake. Measure the distance between the first P wave and the first S wave.
How do seismologist determine the strength and location of an earthquake?
Seismologists use the difference in arrival time between P and S waves to calculate the distance between the earthquake source and the recording instrument (seismograph). Scientists need recordings from at least three seismographs to accurately locate the depth and magnitude of an earthquake.
How can seismologists use the triangulation method to find the epicenter of an earthquake?
Triangulation can be used to locate an earthquake. The seismometers are shown as green dots. The calculated distance from each seismometer to the earthquake is shown as a circle. The location where all the circles intersect is the location of the earthquake epicenter.
How do we locate epicenter?
Scientists use triangulation to find the epicenter of an earthquake. When seismic data is collected from at least three different locations, it can be used to determine the epicenter by where it intersects. Every earthquake is recorded on numerous seismographs located in different directions.
What happens to intensity as you move farther from the epicenter focus Brainly?
The intensity of these shock waves reduces as they move away from the epicenter of the earthquake for two reasons. As the the shock waves move away from epicenter, they cover an enlarging circle of area, with the result that the same energy is distributed over a larger area, resulting in lower energy per unit area.
What will happen to the intensity as you go away from the focus?
Answer. My answer is Letter B because you go away the focus the intensity will decrease. If you’re too far the focus the intensity will decrease.
What is the relationship between earthquake and magnitude?
Magnitude is expressed in whole numbers and decimal fractions. For example, a magnitude 5.3 is a moderate earthquake, and a 6.3 is a strong earthquake. Because of the logarithmic basis of the scale, each whole number increase in magnitude represents a tenfold increase in measured amplitude as measured on a seismogram.
What happen to the magnitude and intensity is measured farther from the epicenter?
Magnitude decreases while intensity increases. C.
How can an earthquake with a moderate magnitude have a high intensity?
Earthquake magnitude is a measure of the total energy released by the movement (the energy released at the source of the event). Having low intensity shaking from a moderate earthquake can happen as can high intensity shaking elsewhere, from the same earthquake and even at locations not separated by great distances.
What is the intensity of an earthquake with a magnitude of 3?
Earthquake magnitude
| magnitude level | category | effects |
|---|---|---|
| less than 1.0 to 2.9 | micro | generally not felt by people, though recorded on local instruments |
| 3.0–3.9 | minor | felt by many people; no damage |
| 4.0–4.9 | light | felt by all; minor breakage of objects |
| 5.0–5.9 | moderate | some damage to weak structures |
What is the intensity of a zero level earthquake?
Ranking Earthquake Intensity
| Magnitude | Average number per year | Description |
|---|---|---|
| 0 – 1.9 | >1 million | micro – not felt |
| 2.0 – 2.9 | >1 million | minor – rarely felt |
| 3.0 – 3.9 | about 100,000 | minor – noticed by a few people |
| 4.0 – 4.9 | about 10,000 | light – felt by many people, minor damage possible |