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The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]
In Japan this kind of information is used when an earthquake occurs to anticipate the severity of damage to be expected in different areas. [2] The intensity of local ground-shaking depends on several factors besides the magnitude of the earthquake, [3] one of the most important being soil conditions. For instance, thick layers of soft soil ...
These factors can be estimated for an existing fault to determine the magnitude of past earthquakes, or what might be anticipated for the future. [49] An earthquake's seismic moment can be estimated in various ways, which are the bases of the M wb, M wr, M wc, M ww, M wp, M i, and M wpd scales, all subtypes of the generic M w scale.
In most cases there is an initial report within 10 to 30 minutes of all magnitude 5.0+ earthquakes globally, and magnitude 4.0+ earthquakes within the contiguous U.S. Note that the magnitudes and locations in the initial reports are only first-order approximations, which get revised in the following hours, days, and months.
An earthquake reportedly occurred in Malibu, west of Los Angeles, at 2:15 p.m. local time Friday measuring a preliminary magnitude of 3.5.
There is a greater than 99% probability of one or more magnitude 3.0 earthquakes in the area over the next day, a 74% chance of a magnitude 4.0 or larger, 22% chance of a magnitude 5.0 and larger ...
A powerful 7.3-magnitude earthquake hit Vanuatu on Tuesday, sparking a network outage, crushing vehicles and damaging multiple buildings, with reports of 14 people killed.
[[Category:Earthquake templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Earthquake templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.