how far can a magnitude 7 earthquake be felt ?

Description

how far can a magnitude 7 earthquake be felt ?

Here are some links that might be useful to you:

https://earthquake.usgs.gov/education/listen/distance.php

https://earthquake.usgs.gov/education/listen/distance.php
Earthquake Distance Effects
Earthquake Distance Effects. As sound travels through the air or earthquake shaking travels through the ground, the waves lose energy. And so a band sounds louder close to the stage than further back and an earthquake feels stronger close to the fault than further away. But there is another effect that changes the frequencies we hear and feel …
Did You Feel It? – USGS Earthquake Hazards Program
This search is configured to return only events with DYFI products. You may enter additional search parameters for magnitude threshold, time window, and geographic area. Annual Data Viewer. Cumulative and yearly response maps for earthquakes in the U.S. and around the world using an interactive map.

https://www.usgs.gov/observatories/hvo/science/felt-earthquakes-ones-people-feel

https://www.usgs.gov/observatories/hvo/science/felt-earthquakes-ones-people-feel
Felt Earthquakes = Ones That People Feel Active – USGS.gov
7 déc. 2023Residents of Hawaii are accustomed to feeling earthquake shaking. The magnitude, location, and depth of an earthquake, and overlying soil conditions determine how widely and strongly any particular event can be felt. Typically, people report feeling earthquakes larger than about 3.0.

https://www.usgs.gov / faqs / what-does-earthquake-feel

https://www.usgs.gov / faqs / what-does-earthquake-feel
What does an earthquake feel like? | U.S. Geological Survey – USGS.gov
The way an earthquake feels depends on where you are, where the earthquake is, and how big the earthquake is:A large earthquake nearby will feel like a sudden large jolt followed quickly by more strong shaking that may last a few seconds or up to a couple of minutes if it’s a rare great event. The shaking will feel violent and it will be difficult to stand up.

https://www.cbsnews.com/news/how-are-earthquakes-measured-magnitude-scales

https://www.cbsnews.com/news/how-are-earthquakes-measured-magnitude-scales
How are earthquakes measured? Get the details on magnitude scales and …
5 avr. 2024Quakes that range from 6.1 to 6.9 magnitude can cause a lot of damage in very populated areas, while a 7.0 to 7.9 magnitude earthquake is considered a major earthquake causing serious damage.

https://earthscience.stackexchange.com/questions/22348/what-magnitude-does-it-feel-like-when-far-away-in-an-earthquake

https://earthscience.stackexchange.com/questions/22348/what-magnitude-does-it-feel-like-when-far-away-in-an-earthquake
What Magnitude does it Feel Like when Far Away in an Earthquake?
Translating between the two is difficult, and requires knowing the detailed geology of the area involved. The picture below is a USGS map of two earthquakes of comparable magnitude, the 1994 Northridge earthquake and an 1895 earthquake on the New Madrid Seismic Zone. In both cases, the outer zone is an intensity of Mercalli II or above, while …

https://www.mtu.edu/geo/community/seismology/learn/earthquake-measure/magnitude

https://www.mtu.edu/geo/community/seismology/learn/earthquake-measure/magnitude
Earthquake Magnitude Scale | Michigan Technological University
Usually not felt, but can be recorded by seismograph. Millions: 2.5 to 5.4: Often felt, but only causes minor damage. 500,000: 5.5 to 6.0: Slight damage to buildings and other structures. 350: 6.1 to 6.9: May cause a lot of damage in very populated areas. 100: 7.0 to 7.9: Major earthquake. Serious damage. 10-15: 8.0 or greater: Great …

https://www.usgs.gov/programs/earthquake-hazards/earthquake-magnitude-energy-release-and-shaking-intensity

https://www.usgs.gov/programs/earthquake-hazards/earthquake-magnitude-energy-release-and-shaking-intensity
Earthquake Magnitude, Energy Release, and Shaking Intensity
Sensitive instruments, which greatly magnify these ground motions, can detect strong earthquakes from sources anywhere in the world. Modern systems precisely amplify and record ground motion (typically at periods of between 0.1 and 100 seconds) as a function of time. Magnitude is the size of the . An has a single .

https://sciencenotes.org/richter-scale-and-earthquake-magnitude

https://sciencenotes.org/richter-scale-and-earthquake-magnitude
Richter Scale and Earthquake Magnitude – Science Notes and Projects
19 juill. 2023The moment magnitude scale (M w) is more complex to calculate than the Richter scale. The basic formula for calculating the moment magnitude is: M w = 2/3 log (M 0) – 10.7. M 0 is the seismic moment, which is measured in dyne-cm (1 dyne-cm = 1×10 -7 joules). The seismic moment (M 0) is a measure of the total energy released by the .

https://openoregon.pressbooks.pub/earthscience/chapter/9-2-measuring-earthquakes

https://openoregon.pressbooks.pub/earthscience/chapter/9-2-measuring-earthquakes
9.2 Measuring Earthquakes – Principles of Earth Science
In 2017 there were 7 earthquakes of M7 (magnitude 7) or greater, but millions of tiny earthquakes. … The earthquake was felt as far north as Prince Rupert, as far south as Portland Oregon, and as far east as the Rockies, but with less intensity. Figure 9.15 Intensity map for the M7.3 Vancouver Island on June 23, 1946.

https://www.nytimes.com/2024/04/05/us/earthquake-magnitude-seismometer-richter-scale.html

https://www.nytimes.com/2024/04/05/us/earthquake-magnitude-seismometer-richter-scale.html
A Look at How Earthquakes Are Measured – The New York Times
5 avr. 2024Of these, about 15 are magnitude 7 or higher. Theoretically a quake of magnitude 10 is possible, but the fault would have to be about 8,000 miles long, or one-third the Earth’s circumference.
lesoutrali bot